104743 - XML parsing error if spaces before <?xml

Status: RESOLVED INVALID

(Core :: XML, defect)

Description

[didier georgieff]

When a XML/RSS 0.91 file starts with some blank caracter before <?xml i get a
XML parsing error, while the XML is walidate at W3C.


XML Parsing Error: xml processing instruction not at start of external entity
Location: http://sitbr.digora.com/quoideneuf_rss
Line Number 1, Column 4:   <?xml
---^

Comment 1

[Alex Vincent [:WeirdAl]]

Attachment: Minimal XHTML document served as text/xml (testcase)

Comment 2

[Alex Vincent [:WeirdAl]]

Ooh, very nice bug!  Here, have a confirm.

Testcase:  if the page loads blank, with no text whatsoever, you've passed the
test.  If you get an error message from the XML parser, you've failed.

Comment 3

[didier georgieff]

The minimal XHTML document you've provided fails too.

You're right : nice bug ;-))

Comment 4

[Heikki Toivonen (remove -bugzilla when emailing directly)]

This bug is INVALID, we are doing the correct thing.

According to the XML Recommendation, an XML document begins with prolog, which
begins with an (optional) XML declaration. No whitespace is allowed before the
XML declaration.

IE is buggy with this, and does not detect the error.

For more details, see

http://www.w3.org/TR/2000/REC-xml-20001006#NT-prolog