[Webkit-unassigned] [Bug 18270] New: treating x-user-defined different from windows-1255 breaks some Indian web sites

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=18270

           Summary: treating x-user-defined different from windows-1255
                    breaks some Indian web sites
           Product: WebKit
           Version: 525.x (Safari 3.1)
          Platform: All
               URL: http://loksatta.com/
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Page Loading
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jungshik.shin at gmail.com


1. Download MillenniumVarun font from http://loksatta.com/MillenniumVarun.zip
2. Go to http://loksatta.com/
3. Half of characters are rendered with empty boxes or question marks.
4. Set the encoding manually to 'Western European'
5. All the characters are rendered correctly. 

The page has 3 meta charset declarations. The first is 'x-user-defined' and
Safari (as well as FF) maps [0x80-0xff] to a PUA block ( U+F780-U+F7FF ?), but
MillenniumVarun font installed above does not have any glyph in that range. 

It's their fault. They should have done either of the following:

 - use 'Symbol' cmap (rather than Microsoft Windows 1255 cmap) in their font
 - specify their page encoding as windows-1255 (or iso-8859-1) rather than
x-user-defined. webkit treats them synonymously. 

Nonetheless, MS IE does not have a problem with the above page (and pages like
that). I didn't  
enable webfont for IE so that it's 'thanks to' IE's handling of
'x-user-defined'.   

Perhaps, webkit also has to treat x-user-defined as an alias to windows-1255.
That would save some code, too (TextCodecUserDefined.cpp).  

There are still a lot of Indian web pages with this problem, I believe although
Unicode becomes more and more widespread.


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