[jboss-jira] [JBoss JIRA] (WFLY-4196) HTTP protocol violation

[Stuart Douglas (JIRA)]

    [ https://issues.jboss.org/browse/WFLY-4196?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13029169#comment-13029169 ] 

Stuart Douglas commented on WFLY-4196:
--------------------------------------

This sounds like a bug in the filter, if you are modifying the length of the response (e.g. by compressing content) then you need to make sure you clear the content length header if it has been set. 

> HTTP protocol violation
> -----------------------
>
>                 Key: WFLY-4196
>                 URL: https://issues.jboss.org/browse/WFLY-4196
>             Project: WildFly
>          Issue Type: Bug
>          Components: Web (Undertow)
>    Affects Versions: 8.1.0.Final, 8.2.0.Final
>            Reporter: Nicolas Cazottes
>            Assignee: Stuart Douglas
>            Priority: Blocker
>         Attachments: bug-wildfly-gzip-war-1.0.0-SNAPSHOT.war, fiddler_protocol_violation.jpg
>
>
> If you deploy the given war in wildfly and open this url http://localhost:8080/bug/images/download.png : it seems to work correctly but if you run it with fiddler2 active, fiddler reports a protocol violation on the Content-Length header value.
> Actually, If the content is some js or css, the browser does not correctly reads it and the web page is corrupted.
> The explanation is that the web application uses a filter to compress the content in gzip format.
> For information, this application works correctly with jboss as 7 or before (that embed tomcat). I discovered the problem while trying to upgrade my application.



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