[zope2-tracker] [Bug 599378] [NEW] HTTPResponse not using accumulated headers correctly

[Nathan Van Gheem]

Public bug reported:

In testing Zope 2.13.0a1, I noticed an issue when attempting to upgrade
a plone 3.3.5 site.

In the file, ZServer/HTTPResponse.py there is the line

>>> headers = headers.items()
>>> for line in self.accumulated_headers:
>>>      if line[0] == '\t':
>>>         headers[-1][1] += '\n' + line
>>>          continue
>>>      headers.append(line.split(': ', 1))

The problem is that accumulated_headers is a tuple of name, values for
the headers. So this sort of thing should actually be,

>>> headers = headers.items()
>>> headers.extend(self.accumulated_headers)

Before testing the upgrade, the site worked fine. It must be that the
accumulated_headers is not used often and the bug just never surfaced.
Perhaps I could be missing something though.

** Affects: zope2
     Importance: Undecided
         Status: New

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HTTPResponse not using accumulated headers correctly
https://bugs.launchpad.net/bugs/599378
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