400 is the specification limit for http header elements. (actually I think it is 400 characters converted to Base64)
Most things don't break if you go over this, The max size for all Http Headers is 4k -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of tempy Sent: Monday, January 16, 2012 10:40 AM To: Google App Engine Subject: [google-appengine] GAE's http header length limit, bug or undocumented restriction? Hi All, I've hit a behavior that doesn't exist on the dev-server, which is that custom http headers on the response seem to be limited to around 400 characters. One custom header that I'm using which is regularly about 700 chars is simply silently dropped from the response. Firstly - this restriction, if its not a bug, should be documented. I've spent a whole lot of time building a feature around a big http header which worked fine all along on the dev server, if I have to re- architect this feature then it'll be a few days of work down the tubes. Secondly - is this a bug? This issue: http://code.google.com/p/googleappengine/issues/detail?id=407 Seems to indicate that this is a bug, but its marked as fixed and it is clearly not fixed. If it is a bug, is there a known workaround? It would be really great if someone from google could weigh in here. Thanks! -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en. -- You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en.
