I get intermittent weird HTML pages where update center metadata gets inserted, sometimes before the headers making the pages unusable.

Example below:

"CORE":

{"BUILDDATE": "AUG 09, 2010", "NAME": "CORE", "URL": "HTTP://UPDATES.HUDSON-LABS.ORG/DOWNLOAD/WAR/1.371/HUDSON.WAR", "VERSION": "1.371"}

, "ID": "DEFAULT", "PLUGINS": {"SCTMEXECUTOR":
{"BUILDDATE": "MAR 06, 2010", "DEPENDENCIES": [], "DEVELOPERS":
[

{"DEVELOPERID": "TOFUATJAVA", "EMAIL": "TFUERER.JAVANET@GOOGLEMAIL.COM", "NAME": "THOMAS FUERER"}

],
"EXCERPT": "THIS PLUGIN WILL LET USERS USE BORLAND'S SILKCENTRAL TEST
MANAGER 2008 R2 OR LATER.", "LABELS": ["BUILDER"], "NAME":
"SCTMEXECUTOR", "PREVIOUSTIMESTAMP": "2010-03-02T04:15:34.00Z",
"RELEASETIMESTAMP": "2010-03-07T01:47:22.00Z", "REQUIREDCORE":
"1.345", "TITLE": "SCTMEXECUTOR", "URL":
"HTTP://UPDATES.HUDSON-LABS.ORG/DOWNLOAD/PLUGINS/SCTMEXECUTOR/1.5.1/SCTMEXECUTOR.HPI",
"VERSION": "1.5.1", "WIKI":
"HTTP://WIKI.HUDSON-CI.ORG//DISPLAY/HUDSON/SCTMEXECUTOR"}, "SCHMANT":
{"BUILDDATE": "DEC 15, 2009", "DEPENDENCIES": [], "DEVELOPERS":
[

{"DEVELOPERID": "KALLE"}

], "EXCERPT": "THE SCHMANT PLUGIN ENABLES
HUDSON TO RUN <A HREF='HTTP://WWW.SCHMANT.ORG'>SCHMANT</A> BUILD
SCRIPTS.", "LABELS": ["BUILDER"], "NAME": "SCHMANT",
"PREVIOUSTIMESTAMP": "2009-04-01T15:28:56.00Z", "RELEASETIMESTAMP":
"2009-12-15T16:01:08.00Z", "REQUIREDCORE": "1.337", "TITLE": "SCHMANT
PLUGIN", "URL":
"HTTP://UPDATES.HUDSON-LABS.ORG/DOWNLOAD/PLUGINS/SCHMANT/1.1.4/SCHMANT.HPI",
"VERSION": "1.1.4", "WIKI":
"HTTP://WIKI.HUDSON-CI.ORG//DISPLAY/HUDSON/SCHMANT+PLUGIN"}, "URLSCM":
{"BUILDDATE": "JAN 27, 2010", "DEPENDENCIES": [], "DEVELOPERS":
[

{"DEVELOPERID": "MDONOHUE", "NAME": "MICHAEL DONOHUE"}

], "EXCERPT":
"THIS PLUGIN ALLOWS THE USE OF URLS AS AN SCM.", "LABELS": ["SCM"],
"NAME": "URLSCM", "PREVIOUSTIMESTAMP": "2008-06-25T01:13:30.00Z",
"RELEASETIMESTAMP": "2010-01-27T14:48:14.00Z", "REQUIREDCORE":
"1.318", "TITLE": "URL SCM", "URL":
"HTTP://UPDATES.HUDSON-LABS.ORG/DOWNLOAD/PLUGINS/URLSCM/1.5/URLSCM.HPI",
"VERSION": "1.5", "WIKI":
"HTTP://WIKI.HUDSON-CI.ORG//DISPLAY/HUDSON/URL+SCM"}, "ACCUREV":
{"BUILDDATE": "MAR 02, 2010", "DEPENDENCIES": [], "DEVELOPERS":
[

{"DEVELOPERID": "STATUM"}

], "EXCERPT": "THIS PLUGIN ALLOWS YOU TO USE
<A HREF='HTTP://WWW.ACCUREV.COM/'>ACCUREV</A> AS A SCM.", "LABELS":
["SCM"], "NAME": "ACCUREV", "PREVIOUSTIMESTAMP":
"2010-02-28T08:19:28.00Z", "RELEASETIMESTAMP":
"2010-03-02T15:28:30.00Z", "REQUIREDCORE": "1.345", "TITLE": "ACCUREV
PLUGIN", "URL":
"HTTP://UPDATES.HUDSON-LABS.ORG/DOWNLOAD/PLUGINS/ACCUREV/0.6.11/ACCUREV.HPI",
"VERSION": "0.6.11", "WIKI":
"HTTP://WIKI.HUDSON-CI.ORG//DISPLAY/HUDSON/ACCUREV+PLUGIN"},
"ACTIVE-DIRECTORY": {"BUILDDATE": "DEC 08, 2009", "DEPENDENCIES": [],
"DEVELOPERS": [

{"DEVELOPERID": "KOHSUKE"}

], "EXCERPT": "WITH THIS
PLUGIN, YOU CAN CONFIGURE HUDSON AUTHENTICATES THE USERNAME AND THE
PASSWORD THROUGH ACTIVE DIRECTORY. ", "LABELS": ["USER"], "NAME":
"ACTIVE-DIRECTORY", "PREVIOUSTIMESTAMP": "2009-07-10T17:09:24.00Z",
"RELEASETIMESTAMP": "2009-12-08T16:53:50.00Z", "REQUIREDCORE":
"1.318", "TITLE": "ACTIVE DIRECTORY PLUGIN", "URL":
"HTTP://UPDATES.HUDSON-LABS.ORG/DOWNLOAD/PLUGINS/ACTIVE-DIRECTORY/1.16/ACTIVE-DIRECTORY.HPI",
"VERSION": "1.16", "WIKI":
"HTTP://WIKI.HUDSON-CI.ORG//DISPLAY/HUDSON/ACTIVE+DIRECTORY+PLUGIN"},
"ANALYSIS-COLLECTOR": {"BUILDDATE": "AUG 02, 2010", "DEPENDENCIES":
[

{"NAME": "ANALYSIS-CORE", "OPTIONAL": FALSE, "VERSION": "1.11"}

,

{"NAME": "MAVEN-PLUGIN", "OPTIONAL": FALSE, "VERSION": "1.358"}

,

{"NAME": "CHECKSTYLE", "OPTIONAL": TRUE, "VERSION": "3.9"}

,

{"NAME": "DRY", "OPTIONAL": TRUE, "VERSION": "2.9"}

,

{"NAME": "FINDBUGS", "OPTIONAL": TRUE, "VERSION": "4.12"}

,

{"NAME": "PMD", "OPTIONAL": TRUE, "VERSION": "3.9"}

,

{"NAME": "TASKS", "OPTIONAL": TRUE, "VERSION": "4.10"}

,

{"NAME": "WARNINGS", "OPTIONAL": TRUE, "VERSION": "3.8"}

,

{"NAME": "DASHBOARD-VIEW", "OPTIONAL": TRUE, "VERSION": "1.5"}

], "DEVELOPERS": [

{"DEVELOPERID": "DRULLI", "NAME": "ULLI HAFNER"}

], "EXCERPT": "THIS PLUG-IN IS AN ADD-ON FOR THE PLUG-INS <A
HREF='HUDSON:CHECKSTYLE PLUGIN'>CHECKSTYLE</A>, <A HREF='HUDSON:DRY
PLUGIN'>DRY</A>, <A HREF='HUDSON:FINDBUGS PLUGIN'>FINDBUGS</A>, <A
HREF='HUDSON:PMD PLUGIN'>PMD</A>, <A HREF 403 Forbidden
Server: Winstone Servlet Engine v0.9.10
Content-Type: text/html;charset=UTF-8
Content-Length: 239
Connection: Keep-Alive
Date: Fri, 13 Aug 2010 05:53:11 GMT
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