[jira] Updated: (SHINDIG-907) Proxy servlet returns an invalid response when original response headers contain 'Transfer-Encoding: chunked'

["Tim Moore (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SHINDIG-907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Tim Moore updated SHINDIG-907:
------------------------------

    Attachment: SHINDIG-907-transfer-encoding.diff

The simplest fix I could find for this is to add 'transfer-encoding' to the DISALLOWED_RESPONSE_HEADERS set in ProxyHandler.java (a patch for the 1.0.x-incubating branch is attached)

> Proxy servlet returns an invalid response when original response headers contain 'Transfer-Encoding: chunked'
> -------------------------------------------------------------------------------------------------------------
>
>                 Key: SHINDIG-907
>                 URL: https://issues.apache.org/jira/browse/SHINDIG-907
>             Project: Shindig
>          Issue Type: Bug
>          Components: Gadget Rendering Server (Java)
>    Affects Versions: 1.0.x-incubating
>            Reporter: Tim Moore
>         Attachments: SHINDIG-907-transfer-encoding.diff
>
>
> When the proxy handler receives a response that uses chunked transfer encoding, it retains the 'transfer-encoding' header in its own response, but doesn't actually send the response body in the chunked format.  This causes browsers & other clients to reject the response.
> This can be seen most easily when a gadget links to an external stylesheet on a server that uses chunked responses.
> For example, this gadget exhibits the problem: http://labs.atlassian.com/gadgets/lhardy/trunk/lhardy/gadget.xml
> The gadget itself loads normally, but its linked CSS file does not, so the contents are presented unstyled.
> Info on chunked transfer encoding at: http://en.wikipedia.org/wiki/Chunked_transfer_encoding

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