57623 - Feature request, show non-standard HTML errors in new window

Status: VERIFIED DUPLICATE of bug 6211

(SeaMonkey :: General, defect, P3)

Description

[tony.haglof]

From Bugzilla Helper:
User-Agent: Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)
BuildID:    20001018-09


Since Mozilla will be supporting only the real HTML standard specifications, 
maybe it would be a great idea to have an option like "Show Non-standard HTML 
errors" that you could toggle ON/OFF in the menu or preferences.

When the option is turned on it should display a window presenting the tags 
that are not supported in the page, with a little explanation and maybe a link 
to W3.ORG.

For example when displaying pages with Netscape layers or 
like "http://home.passagen.se/elr/sommar.html" that uses the 
unsupported "leftmargin" tag, A new windows appears:

"This page uses an unsupported tag "Leftmargin" that is Microsoft propritary 
and it is not supported in the HTML specifikation. This could result that this 
page displays incorrectly."


Reproducible: Always
Steps to Reproduce:
1. Use Mozilla on a page enhanced for IE or Netscape (propritary tags)
2.
3.

Expected Results:  Display an optional window that tells the user that there is 
a problem with the HTML coding.



A lot of people trying out Mozilla or Netscape6 tells me that some pages 
renders things wrong and that the same pages works in Internet 
Explorer/Netscape communicator.

For example pages using layers and leftmargin...

An explanation of the non-standard HTML would really help them understand why 
and when a page is displayed wrong and that Mozilla is not "buggy".

Comment 1

[Asa Dotzler [:asa]]

I think that this is a duplicate.  I will try to find the original report.

Comment 2

[Doron Rosenberg (IBM)]

dupe of

*** This bug has been marked as a duplicate of 47108 ***

Comment 3

[Jesse Ruderman]

This is actually a dup of bug 6211, which wants Mozilla to show all errors with 
the html of a page, or at least warn the user when quirks present in Netscape 4 
are used (whether the quirks are still present or not).  Bug 47108 is mostly 
about the status bar display.

Comment 4

[Doron Rosenberg (IBM)]

eeek, jesse is right. reopneing to do thus

Comment 5

[Doron Rosenberg (IBM)]

dupe of 6211


*** This bug has been marked as a duplicate of 6211 ***

Comment 6

[Christian :Biesinger (don't email me, ping me on IRC)]

vrfy