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Vishal_96707's avatar
Vishal_96707
Icon for Nimbostratus rankNimbostratus
Jan 21, 2009

iRule for Response Header "content-length"

  I need help with getting the "content-length" value in Response header. Basically the iRule should check for HTTP "Status" 404 and "content-length" not equal to zero.     Thanks in a...
application delivery
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iRules
Deb_Allen_18's avatar
Deb_Allen_18
Historic F5 Account
Jan 22, 2009
Keep in mind that 404's may (typically do) include a message body containing explanatory text, which would mean content length may not be 0 for a 404. From RFC2616:All 1xx (informational), 204 (no content), and 304 (not modified) responses MUST NOT include a message-body. All other responses do include a message-body, although it MAY be of zero length.Also, if it does contain a message body, it may be sent in a chunked response, which would mean there is no Content-Length header at all.

 

 

HTH

 

/d