https://bugzilla.wikimedia.org/show_bug.cgi?id=31783
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Bug #: 31783
Summary: Atom feeds on 1.16.5 have extraneous LF before XML
header
Product: MediaWiki
Version: 1.16.5
Platform: All
OS/Version: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: Syndication
AssignedTo: [email protected]
ReportedBy: [email protected]
Classification: Unclassified
Somewhere between 1.16.2 and 1.16.5 atom feeds were broken. On the latter, an
extraneous line feed is inserted at the beginning of the response.
On 1.16.2, the response begins (for Recent Changes atom feed):
0000 3c 3f 78 6d 6c 20 76 65 72 73 69 6f 6e 3d 22 31 <?xml version="1
0010 2e 30 22 3f 3e 0a 3c 3f 78 6d 6c 2d 73 74 79 6c .0"?>.<?xml-styl
0020 65 73 68 65 65 74 20 74 79 70 65 3d 22 74 65 78 esheet type="tex
0030 74 2f 63 73 73 22 20 68 72 65 66 3d 22 68 74 74 t/css"
On 1.16.5 it begins:
0000 0a 3c 3f 78 6d 6c 20 76 65 72 73 69 6f 6e 3d 22 .<?xml version="
0010 31 2e 30 22 3f 3e 0a 3c 3f 78 6d 6c 2d 73 74 79 1.0"?>.<?xml-sty
0020 6c 65 73 68 65 65 74 20 74 79 70 65 3d 22 74 65 lesheet type="te
0030 78 74 2f 63 73 73 22 20 68 72 65 66 3d 22 68 74 xt/css"
Notice the LF at the beginning on 1.16.5. This causes most browsers to barf
(interestingly, Safari 5.1 on a Mac doesn't). Here is the error message from
opera (which is more informative than the one from firefox):
XML parsing failed
XML parsing failed: syntax error (Line: 2, Character: 0)
Reparse document as HTML
Error:
XML declaration not at beginning of document
Specification:
http://www.w3.org/TR/REC-xml/
1:
2: <?xml version="1.0"?>
3: <?xml-stylesheet type="text/css"
href="http://ec.citizendium.org/skins/common/feed.css?270";?>
4: <feed xmlns="http://www.w3.org/2005/Atom"; xml:lang="en">
5:
<id>http://ec.citizendium.org/wiki?title=Special:RecentChanges&feed=atom</id>
Perhaps this bug is related to 19055, but it wasn't clear from the description.
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