diff --git a/mercurial/httppeer.py b/mercurial/httppeer.py
index 35b516f800e03c5db81ff2acaf44d718f280107b_bWVyY3VyaWFsL2h0dHBwZWVyLnB5..a520aefb96f194049ba1287eda255a6e8a9066ed_bWVyY3VyaWFsL2h0dHBwZWVyLnB5 100644
--- a/mercurial/httppeer.py
+++ b/mercurial/httppeer.py
@@ -11,6 +11,7 @@
 import errno
 import os
 import socket
+import struct
 import tempfile
 
 from .i18n import _
@@ -174,6 +175,37 @@
         if data is not None and 'Content-Type' not in headers:
             headers['Content-Type'] = 'application/mercurial-0.1'
 
+        # Tell the server we accept application/mercurial-0.2 and multiple
+        # compression formats if the server is capable of emitting those
+        # payloads.
+        protoparams = []
+
+        mediatypes = set()
+        if self.caps is not None:
+            mt = self.capable('httpmediatype')
+            if mt:
+                protoparams.append('0.1')
+                mediatypes = set(mt.split(','))
+
+        if '0.2tx' in mediatypes:
+            protoparams.append('0.2')
+
+        if '0.2tx' in mediatypes and self.capable('compression'):
+            # We /could/ compare supported compression formats and prune
+            # non-mutually supported or error if nothing is mutually supported.
+            # For now, send the full list to the server and have it error.
+            comps = [e.wireprotosupport().name for e in
+                     util.compengines.supportedwireengines(util.CLIENTROLE)]
+            protoparams.append('comp=%s' % ','.join(comps))
+
+        if protoparams:
+            protoheaders = encodevalueinheaders(' '.join(protoparams),
+                                                'X-HgProto',
+                                                headersize or 1024)
+            for header, value in protoheaders:
+                headers[header] = value
+                varyheaders.append(header)
+
         headers['Vary'] = ','.join(varyheaders)
         req = self.requestbuilder(cu, data, headers)
 
@@ -224,7 +256,19 @@
             except ValueError:
                 raise error.RepoError(_("'%s' sent a broken Content-Type "
                                         "header (%s)") % (safeurl, proto))
-            if version_info > (0, 1):
+
+            if version_info == (0, 1):
+                if _compressible:
+                    return decompressresponse(resp, util.compengines['zlib'])
+                return resp
+            elif version_info == (0, 2):
+                # application/mercurial-0.2 always identifies the compression
+                # engine in the payload header.
+                elen = struct.unpack('B', resp.read(1))[0]
+                ename = resp.read(elen)
+                engine = util.compengines.forwiretype(ename)
+                return decompressresponse(resp, engine)
+            else:
                 raise error.RepoError(_("'%s' uses newer protocol %s") %
                                       (safeurl, version))
 
diff --git a/mercurial/url.py b/mercurial/url.py
index 35b516f800e03c5db81ff2acaf44d718f280107b_bWVyY3VyaWFsL3VybC5weQ==..a520aefb96f194049ba1287eda255a6e8a9066ed_bWVyY3VyaWFsL3VybC5weQ== 100644
--- a/mercurial/url.py
+++ b/mercurial/url.py
@@ -466,6 +466,11 @@
     # user agent they deem appropriate.
     agent = 'mercurial/proto-1.0 (Mercurial %s)' % util.version()
     opener.addheaders = [('User-agent', agent)]
+
+    # This header should only be needed by wire protocol requests. But it has
+    # been sent on all requests since forever. We keep sending it for backwards
+    # compatibility reasons. Modern versions of the wire protocol use
+    # X-HgProto-<N> for advertising client support.
     opener.addheaders.append(('Accept', 'application/mercurial-0.1'))
     return opener
 
diff --git a/tests/test-clonebundles.t b/tests/test-clonebundles.t
index 35b516f800e03c5db81ff2acaf44d718f280107b_dGVzdHMvdGVzdC1jbG9uZWJ1bmRsZXMudA==..a520aefb96f194049ba1287eda255a6e8a9066ed_dGVzdHMvdGVzdC1jbG9uZWJ1bmRsZXMudA== 100644
--- a/tests/test-clonebundles.t
+++ b/tests/test-clonebundles.t
@@ -31,8 +31,8 @@
 
   $ cat server/access.log
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D (glob)
-  * - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=aaff8d2ffbbf07a46dd1f05d8ae7877e3f56e2a2&listkeys=phases%2Cbookmarks (glob)
+  * - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=aaff8d2ffbbf07a46dd1f05d8ae7877e3f56e2a2&listkeys=phases%2Cbookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
 
 Empty manifest file results in retrieval
 (the extension only checks if the manifest file exists)
diff --git a/tests/test-getbundle.t b/tests/test-getbundle.t
index 35b516f800e03c5db81ff2acaf44d718f280107b_dGVzdHMvdGVzdC1nZXRidW5kbGUudA==..a520aefb96f194049ba1287eda255a6e8a9066ed_dGVzdHMvdGVzdC1nZXRidW5kbGUudA== 100644
--- a/tests/test-getbundle.t
+++ b/tests/test-getbundle.t
@@ -264,5 +264,5 @@
 
   $ cat access.log
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - (glob)
+  * - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
@@ -268,5 +268,5 @@
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:common=700b7e19db54103633c4bf4a6a6b6d55f4d50c03+d5f6e1ea452285324836a49d7d3c2a63cfed1d31&heads=13c0170174366b441dc68e8e33757232fa744458+bac16991d12ff45f9dc43c52da1946dfadb83e80 (glob)
+  * - - [*] "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:common=700b7e19db54103633c4bf4a6a6b6d55f4d50c03+d5f6e1ea452285324836a49d7d3c2a63cfed1d31&heads=13c0170174366b441dc68e8e33757232fa744458+bac16991d12ff45f9dc43c52da1946dfadb83e80 x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
 
   $ cat error.log
 
diff --git a/tests/test-http-bundle1.t b/tests/test-http-bundle1.t
index 35b516f800e03c5db81ff2acaf44d718f280107b_dGVzdHMvdGVzdC1odHRwLWJ1bmRsZTEudA==..a520aefb96f194049ba1287eda255a6e8a9066ed_dGVzdHMvdGVzdC1odHRwLWJ1bmRsZTEudA== 100644
--- a/tests/test-http-bundle1.t
+++ b/tests/test-http-bundle1.t
@@ -238,6 +238,6 @@
 
   $ sed 's/.*] "/"/' < ../access.log
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -243,4 +243,4 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -246,6 +246,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -251,6 +251,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -256,6 +256,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -261,6 +261,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -266,6 +266,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -271,8 +271,8 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=branchmap HTTP/1.1" 200 -
-  "GET /?cmd=stream_out HTTP/1.1" 401 -
-  "GET /?cmd=stream_out HTTP/1.1" 200 -
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
-  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D5fed3813f7f5e1824344fdc9cf8f63bb662c292d
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
+  "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=stream_out HTTP/1.1" 401 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=stream_out HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D5fed3813f7f5e1824344fdc9cf8f63bb662c292d x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -278,7 +278,7 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=bookmarks
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
-  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D
-  "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:common=0000000000000000000000000000000000000000&heads=5fed3813f7f5e1824344fdc9cf8f63bb662c292d
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:common=0000000000000000000000000000000000000000&heads=5fed3813f7f5e1824344fdc9cf8f63bb662c292d x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -284,4 +284,4 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -287,5 +287,5 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 403 - x-hgarg-1:namespace=namespaces
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 403 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -291,9 +291,9 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D7f4e523d01f2cc3765ac8934da3d14db775ff872
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=phases
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
-  "GET /?cmd=branchmap HTTP/1.1" 200 -
-  "GET /?cmd=branchmap HTTP/1.1" 200 -
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D7f4e523d01f2cc3765ac8934da3d14db775ff872 x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "POST /?cmd=unbundle HTTP/1.1" 200 - x-hgarg-1:heads=686173686564+5eb5abfefeea63c80dd7553bcc3783f37e0c5524* (glob)
@@ -299,5 +299,5 @@
   "POST /?cmd=unbundle HTTP/1.1" 200 - x-hgarg-1:heads=686173686564+5eb5abfefeea63c80dd7553bcc3783f37e0c5524* (glob)
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
 
   $ cd ..
 
diff --git a/tests/test-http-proxy.t b/tests/test-http-proxy.t
index 35b516f800e03c5db81ff2acaf44d718f280107b_dGVzdHMvdGVzdC1odHRwLXByb3h5LnQ=..a520aefb96f194049ba1287eda255a6e8a9066ed_dGVzdHMvdGVzdC1odHRwLXByb3h5LnQ= 100644
--- a/tests/test-http-proxy.t
+++ b/tests/test-http-proxy.t
@@ -101,8 +101,8 @@
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ cat proxy.log
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=branchmap HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=stream_out HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D83180e7845de420a1bb46896fd5fe05294f8d629 (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=0&common=83180e7845de420a1bb46896fd5fe05294f8d629&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=branchmap HTTP/1.1" - - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=stream_out HTTP/1.1" - - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D83180e7845de420a1bb46896fd5fe05294f8d629 x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=0&common=83180e7845de420a1bb46896fd5fe05294f8d629&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
@@ -108,4 +108,4 @@
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
@@ -111,4 +111,4 @@
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
@@ -114,4 +114,4 @@
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
@@ -117,3 +117,3 @@
   * - - [*] "GET http://localhost:$HGPORT/?cmd=capabilities HTTP/1.1" - - (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D (glob)
-  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=batch HTTP/1.1" - - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET http://localhost:$HGPORT/?cmd=getbundle HTTP/1.1" - - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=83180e7845de420a1bb46896fd5fe05294f8d629&listkeys=phases%2Cbookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
diff --git a/tests/test-http.t b/tests/test-http.t
index 35b516f800e03c5db81ff2acaf44d718f280107b_dGVzdHMvdGVzdC1odHRwLnQ=..a520aefb96f194049ba1287eda255a6e8a9066ed_dGVzdHMvdGVzdC1odHRwLnQ= 100644
--- a/tests/test-http.t
+++ b/tests/test-http.t
@@ -229,6 +229,6 @@
 
   $ sed 's/.*] "/"/' < ../access.log
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -234,4 +234,4 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -237,6 +237,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -242,6 +242,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -247,6 +247,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -252,6 +252,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -257,6 +257,6 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -262,7 +262,7 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=branchmap HTTP/1.1" 200 -
-  "GET /?cmd=stream_out HTTP/1.1" 401 -
-  "GET /?cmd=stream_out HTTP/1.1" 200 -
-  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D5fed3813f7f5e1824344fdc9cf8f63bb662c292d
-  "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=0&common=5fed3813f7f5e1824344fdc9cf8f63bb662c292d&heads=5fed3813f7f5e1824344fdc9cf8f63bb662c292d&listkeys=phases%2Cbookmarks
+  "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=stream_out HTTP/1.1" 401 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=stream_out HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D5fed3813f7f5e1824344fdc9cf8f63bb662c292d x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=0&common=5fed3813f7f5e1824344fdc9cf8f63bb662c292d&heads=5fed3813f7f5e1824344fdc9cf8f63bb662c292d&listkeys=phases%2Cbookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -268,5 +268,5 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D
-  "GET /?cmd=getbundle HTTP/1.1" 401 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=5fed3813f7f5e1824344fdc9cf8f63bb662c292d&listkeys=phases%2Cbookmarks
-  "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=5fed3813f7f5e1824344fdc9cf8f63bb662c292d&listkeys=phases%2Cbookmarks
+  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=getbundle HTTP/1.1" 401 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=5fed3813f7f5e1824344fdc9cf8f63bb662c292d&listkeys=phases%2Cbookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=0000000000000000000000000000000000000000&heads=5fed3813f7f5e1824344fdc9cf8f63bb662c292d&listkeys=phases%2Cbookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -272,4 +272,4 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -275,5 +275,5 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces
-  "GET /?cmd=listkeys HTTP/1.1" 403 - x-hgarg-1:namespace=namespaces
+  "GET /?cmd=lookup HTTP/1.1" 200 - x-hgarg-1:key=tip x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 403 - x-hgarg-1:namespace=namespaces x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -279,9 +279,9 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D7f4e523d01f2cc3765ac8934da3d14db775ff872
-  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=phases
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
-  "GET /?cmd=branchmap HTTP/1.1" 200 -
-  "GET /?cmd=branchmap HTTP/1.1" 200 -
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D7f4e523d01f2cc3765ac8934da3d14db775ff872 x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 401 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   "POST /?cmd=unbundle HTTP/1.1" 200 - x-hgarg-1:heads=666f726365* (glob)
@@ -287,5 +287,5 @@
   "POST /?cmd=unbundle HTTP/1.1" 200 - x-hgarg-1:heads=666f726365* (glob)
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
 
   $ cd ..
 
diff --git a/tests/test-largefiles-wireproto.t b/tests/test-largefiles-wireproto.t
index 35b516f800e03c5db81ff2acaf44d718f280107b_dGVzdHMvdGVzdC1sYXJnZWZpbGVzLXdpcmVwcm90by50..a520aefb96f194049ba1287eda255a6e8a9066ed_dGVzdHMvdGVzdC1sYXJnZWZpbGVzLXdpcmVwcm90by50 100644
--- a/tests/test-largefiles-wireproto.t
+++ b/tests/test-largefiles-wireproto.t
@@ -347,7 +347,7 @@
   searching 2 changesets for largefiles
   verified existence of 2 revisions of 2 largefiles
   $ tail -1 access.log
-  127.0.0.1 - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=statlfile+sha%3D972a1a11f19934401291cc99117ec614933374ce%3Bstatlfile+sha%3Dc801c9cfe94400963fcb683246217d5db77f9a9a (glob)
+  127.0.0.1 - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=statlfile+sha%3D972a1a11f19934401291cc99117ec614933374ce%3Bstatlfile+sha%3Dc801c9cfe94400963fcb683246217d5db77f9a9a x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   $ hg -R batchverifyclone update
   getting changed largefiles
   2 largefiles updated, 0 removed
@@ -384,7 +384,7 @@
   searching 3 changesets for largefiles
   verified existence of 3 revisions of 3 largefiles
   $ tail -1 access.log
-  127.0.0.1 - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=statlfile+sha%3Dc8559c3c9cfb42131794b7d8009230403b9b454c (glob)
+  127.0.0.1 - - [*] "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=statlfile+sha%3Dc8559c3c9cfb42131794b7d8009230403b9b454c x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
 
   $ killdaemons.py
 
diff --git a/tests/test-setdiscovery.t b/tests/test-setdiscovery.t
index 35b516f800e03c5db81ff2acaf44d718f280107b_dGVzdHMvdGVzdC1zZXRkaXNjb3ZlcnkudA==..a520aefb96f194049ba1287eda255a6e8a9066ed_dGVzdHMvdGVzdC1zZXRkaXNjb3ZlcnkudA== 100644
--- a/tests/test-setdiscovery.t
+++ b/tests/test-setdiscovery.t
@@ -349,9 +349,9 @@
   $ killdaemons.py
   $ cut -d' ' -f6- access.log | grep -v cmd=known # cmd=known uses random sampling
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D513314ca8b3ae4dac8eec56966265b00fcf866db
-  "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=513314ca8b3ae4dac8eec56966265b00fcf866db&heads=e64a39e7da8b0d54bc63e81169aff001c13b3477
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
+  "GET /?cmd=batch HTTP/1.1" 200 - x-hgarg-1:cmds=heads+%3Bknown+nodes%3D513314ca8b3ae4dac8eec56966265b00fcf866db x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=getbundle HTTP/1.1" 200 - x-hgarg-1:bundlecaps=HG20%2Cbundle2%3DHG20%250Achangegroup%253D01%252C02%250Adigests%253Dmd5%252Csha1%252Csha512%250Aerror%253Dabort%252Cunsupportedcontent%252Cpushraced%252Cpushkey%250Ahgtagsfnodes%250Alistkeys%250Apushkey%250Aremote-changegroup%253Dhttp%252Chttps&cg=1&common=513314ca8b3ae4dac8eec56966265b00fcf866db&heads=e64a39e7da8b0d54bc63e81169aff001c13b3477 x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   $ cat errors.log
 
   $ cd ..
diff --git a/tests/test-treediscovery.t b/tests/test-treediscovery.t
index 35b516f800e03c5db81ff2acaf44d718f280107b_dGVzdHMvdGVzdC10cmVlZGlzY292ZXJ5LnQ=..a520aefb96f194049ba1287eda255a6e8a9066ed_dGVzdHMvdGVzdC10cmVlZGlzY292ZXJ5LnQ= 100644
--- a/tests/test-treediscovery.t
+++ b/tests/test-treediscovery.t
@@ -505,9 +505,9 @@
   $ cd ..
   $ tstop show
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=heads HTTP/1.1" 200 -
-  "GET /?cmd=branches HTTP/1.1" 200 - x-hgarg-1:nodes=d8f638ac69e9ae8dea4f09f11d696546a912d961
-  "GET /?cmd=between HTTP/1.1" 200 - x-hgarg-1:pairs=d8f638ac69e9ae8dea4f09f11d696546a912d961-d57206cc072a18317c1e381fb60aa31bd3401785
-  "GET /?cmd=changegroupsubset HTTP/1.1" 200 - x-hgarg-1:bases=d8f638ac69e9ae8dea4f09f11d696546a912d961&heads=d8f638ac69e9ae8dea4f09f11d696546a912d961
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
+  "GET /?cmd=heads HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=branches HTTP/1.1" 200 - x-hgarg-1:nodes=d8f638ac69e9ae8dea4f09f11d696546a912d961 x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=between HTTP/1.1" 200 - x-hgarg-1:pairs=d8f638ac69e9ae8dea4f09f11d696546a912d961-d57206cc072a18317c1e381fb60aa31bd3401785 x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=changegroupsubset HTTP/1.1" 200 - x-hgarg-1:bases=d8f638ac69e9ae8dea4f09f11d696546a912d961&heads=d8f638ac69e9ae8dea4f09f11d696546a912d961 x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -513,5 +513,5 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=heads HTTP/1.1" 200 -
-  "GET /?cmd=branches HTTP/1.1" 200 - x-hgarg-1:nodes=d8f638ac69e9ae8dea4f09f11d696546a912d961
-  "GET /?cmd=between HTTP/1.1" 200 - x-hgarg-1:pairs=d8f638ac69e9ae8dea4f09f11d696546a912d961-d57206cc072a18317c1e381fb60aa31bd3401785
+  "GET /?cmd=heads HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=branches HTTP/1.1" 200 - x-hgarg-1:nodes=d8f638ac69e9ae8dea4f09f11d696546a912d961 x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=between HTTP/1.1" 200 - x-hgarg-1:pairs=d8f638ac69e9ae8dea4f09f11d696546a912d961-d57206cc072a18317c1e381fb60aa31bd3401785 x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -517,8 +517,8 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
-  "GET /?cmd=heads HTTP/1.1" 200 -
-  "GET /?cmd=branches HTTP/1.1" 200 - x-hgarg-1:nodes=d8f638ac69e9ae8dea4f09f11d696546a912d961
-  "GET /?cmd=between HTTP/1.1" 200 - x-hgarg-1:pairs=d8f638ac69e9ae8dea4f09f11d696546a912d961-d57206cc072a18317c1e381fb60aa31bd3401785
-  "GET /?cmd=changegroupsubset HTTP/1.1" 200 - x-hgarg-1:bases=d8f638ac69e9ae8dea4f09f11d696546a912d961&heads=d8f638ac69e9ae8dea4f09f11d696546a912d961
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=heads HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=branches HTTP/1.1" 200 - x-hgarg-1:nodes=d8f638ac69e9ae8dea4f09f11d696546a912d961 x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=between HTTP/1.1" 200 - x-hgarg-1:pairs=d8f638ac69e9ae8dea4f09f11d696546a912d961-d57206cc072a18317c1e381fb60aa31bd3401785 x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=changegroupsubset HTTP/1.1" 200 - x-hgarg-1:bases=d8f638ac69e9ae8dea4f09f11d696546a912d961&heads=d8f638ac69e9ae8dea4f09f11d696546a912d961 x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -524,8 +524,8 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=heads HTTP/1.1" 200 -
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
-  "GET /?cmd=branchmap HTTP/1.1" 200 -
-  "GET /?cmd=branchmap HTTP/1.1" 200 -
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks
+  "GET /?cmd=heads HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=branchmap HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=bookmarks x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
   "POST /?cmd=unbundle HTTP/1.1" 200 - x-hgarg-1:heads=686173686564+1827a5bb63e602382eb89dd58f2ac9f3b007ad91* (glob)
@@ -531,3 +531,3 @@
   "POST /?cmd=unbundle HTTP/1.1" 200 - x-hgarg-1:heads=686173686564+1827a5bb63e602382eb89dd58f2ac9f3b007ad91* (glob)
-  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases
+  "GET /?cmd=listkeys HTTP/1.1" 200 - x-hgarg-1:namespace=phases x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -533,3 +533,3 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=heads HTTP/1.1" 200 -
+  "GET /?cmd=heads HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
   "GET /?cmd=capabilities HTTP/1.1" 200 -
@@ -535,2 +535,2 @@
   "GET /?cmd=capabilities HTTP/1.1" 200 -
-  "GET /?cmd=heads HTTP/1.1" 200 -
+  "GET /?cmd=heads HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=zstd,zlib,none,bzip2
diff --git a/tests/test-wireproto.t b/tests/test-wireproto.t
index 35b516f800e03c5db81ff2acaf44d718f280107b_dGVzdHMvdGVzdC13aXJlcHJvdG8udA==..a520aefb96f194049ba1287eda255a6e8a9066ed_dGVzdHMvdGVzdC13aXJlcHJvdG8udA== 100644
--- a/tests/test-wireproto.t
+++ b/tests/test-wireproto.t
@@ -94,6 +94,6 @@
   * - - [*] "POST /?cmd=debugwireargs HTTP/1.1" 200 - x-hgargs-post:1033* (glob)
   * - - [*] "POST /?cmd=debugwireargs HTTP/1.1" 200 - x-hgargs-post:1033* (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=quatre&one=un&three=trois&two=deux (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=quatre&one=un&three=trois&two=deux (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=quatre&one=un&three=trois&two=deux x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=quatre&one=un&three=trois&two=deux x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
@@ -99,4 +99,4 @@
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=qu++atre&one=+un&three=trois+&two=deux (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=qu++atre&one=+un&three=trois+&two=deux (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=qu++atre&one=+un&three=trois+&two=deux x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=qu++atre&one=+un&three=trois+&two=deux x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
@@ -102,4 +102,4 @@
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=vier&one=eins&two=zwei (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=vier&one=eins&two=zwei (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=vier&one=eins&two=zwei x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=vier&one=eins&two=zwei x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
@@ -105,4 +105,4 @@
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:one=eins&two=zwei (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:one=eins&two=zwei (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:one=eins&two=zwei x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:one=eins&two=zwei x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
@@ -108,4 +108,4 @@
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:one=eins&two=zwei (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:one=eins&two=zwei (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:one=eins&two=zwei x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:one=eins&two=zwei x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
@@ -111,6 +111,6 @@
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=onethousandcharactersxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&one x-hgarg-2:=un&three=trois&two=deux (glob)
-  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=onethousandcharactersxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&one x-hgarg-2:=un&three=trois&two=deux (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=onethousandcharactersxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&one x-hgarg-2:=un&three=trois&two=deux x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs HTTP/1.1" 200 - x-hgarg-1:four=onethousandcharactersxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx&one x-hgarg-2:=un&three=trois&two=deux x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
 
 HTTP without the httpheader capability:
 
@@ -133,6 +133,6 @@
   $ cat error2.log
   $ cat access2.log
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs&four=quatre&one=un&three=trois&two=deux HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs&four=quatre&one=un&three=trois&two=deux HTTP/1.1" 200 - (glob)
+  * - - [*] "GET /?cmd=debugwireargs&four=quatre&one=un&three=trois&two=deux HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs&four=quatre&one=un&three=trois&two=deux HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
@@ -138,4 +138,4 @@
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs&four=vier&one=eins&two=zwei HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs&four=vier&one=eins&two=zwei HTTP/1.1" 200 - (glob)
+  * - - [*] "GET /?cmd=debugwireargs&four=vier&one=eins&two=zwei HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs&four=vier&one=eins&two=zwei HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
@@ -141,4 +141,4 @@
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs&one=eins&two=zwei HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs&one=eins&two=zwei HTTP/1.1" 200 - (glob)
+  * - - [*] "GET /?cmd=debugwireargs&one=eins&two=zwei HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs&one=eins&two=zwei HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
@@ -144,6 +144,6 @@
   * - - [*] "GET /?cmd=capabilities HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs&one=eins&two=zwei HTTP/1.1" 200 - (glob)
-  * - - [*] "GET /?cmd=debugwireargs&one=eins&two=zwei HTTP/1.1" 200 - (glob)
+  * - - [*] "GET /?cmd=debugwireargs&one=eins&two=zwei HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
+  * - - [*] "GET /?cmd=debugwireargs&one=eins&two=zwei HTTP/1.1" 200 - x-hgproto-1:0.1 0.2 comp=*zlib,none,bzip2 (glob)
 
 SSH (try to exercise the ssh functionality with a dummy script):