Closed
Bug 253440
Opened 21 years ago
Closed 20 years ago
HTML pages containing rgb values for body's bgcolor attribute displays dark green background, rendering page unreadable
Categories
(Core :: DOM: HTML Parser, defect)
Tracking
()
VERIFIED
DUPLICATE
of bug 121738
People
(Reporter: baboin, Unassigned)
Details
Attachments
(1 file)
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245 bytes,
text/html
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Details |
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8a3) Gecko/20040726 MultiZilla/1.6.4.0b
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.8a3) Gecko/20040726 MultiZilla/1.6.4.0b
The following valid 4.01 Transitional HTML shows how Mozilla (up to 2004-07-26's
nightly build) badly interprets the deprecated background color tag. Mozilla
renders this page with a dark text on black or dark green background instead of
a silvery-grey colour that this particular color code example represents:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html lang="en">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<title>Management Page</title>
</head>
<body bgcolor="rgb(229, 229, 229);">
Testing testing testing
</body>
</html>
(Additional edited comment From Martijn Wargers follows)
This is also not allowed inside a bgcolor attribute, see bug 150214. However,
Mozilla doesn't seem to ignore the value but instead draws a dark green
background color for the body. I think that's a valid bug.
See also bug 150214, why rgb values aren't allowed.
Reproducible: Always
Steps to Reproduce:
Paste the example HTML code noted above into a file and load in Mozilla
Actual Results:
Page rendered unreadable
Expected Results:
Judging from Martin's comments, I imagine Mozilla should simply ignore the
unsupported RGB code and not show any background colour.
The workaround is to set Mozilla to "Use my chosen colors, ignoring the colors
and background image specified" - see menu "Edit >> Preferences >> Appearance >>
Colors".
This isn't a very good workaround since you don't want to do this for every
wonky page that uses this unsupported RGB(xxx,yyy,zzz) style, unless you have
the PrefBar installed and then you can just uncheck the "Colors" checkbox.
Because many people don't use PrefBar, I'm setting this bug's severity as
"Normal - it should be fixed" instead of "Minor".
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Comment 1•21 years ago
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The "background" attribute is parsed as a hex color string. There are existing
bugs on this process not being _quite_ identical to IE's for cases when it's not
a valid hex string....
Whiteboard: DUPEME
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Reporter | |
Comment 2•21 years ago
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Open the attached HTML file in your fixed Mozilla; you should be able to read
the text and the background should be white...
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Reporter | |
Comment 3•21 years ago
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(In reply to comment #1)
> The "background" attribute is parsed as a hex color string. There are existing
> bugs on this process not being _quite_ identical to IE's for cases when it's not
> a valid hex string....
I couldn't find any bugs (I did so the usual search for dupes beforehand). At
any rate, I'd submit that we aren't interested in copying any particular IE
reaction to invalid colour hex strings - let's just ignore it in the parser and
display a white background...
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Comment 4•20 years ago
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This isn't handled in the parser, and we can't just ignore it; a lot of pages
rely on such invalid strings and IE and NS4 render them identically... Marking
dup of the bug on this issue.
*** This bug has been marked as a duplicate of 121738 ***
Status: UNCONFIRMED → RESOLVED
Closed: 20 years ago
Resolution: --- → DUPLICATE
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Description
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