155600 - DNS: Modal error dialog for iframe content

Status: VERIFIED DUPLICATE of bug 28586

(Core :: Networking, defect)

Description

[Sean Harding]

When the DNS lookup of a server for the contents of an iframe fails, mozilla
pops up a modal error dialog box. This is, at best, extremely annoying.
Especially when the server in question is the ad server for a site which has ads
on every single page. At the very least, Mozilla should just pop the error once.
I'd think that such an error isn't necessary at all. If we want to show some
kind of error, something similar to the broken image icon would be preferrable
to a modal dialog.

For an example of this in the wild, take a look at
http://seattletimes.nwsource.com/html/northwestlife/134486414_case03.html
At the time of this writing, that page includes an iframe with src =
http://view.atdmt.com/iview/sttltepd02300104ave/direct;wi.120;hi.600/01?click=
and "view.atdmt.com" doesn't resolve. 

I made an example that is less likely to change at
http://www.seanh.net/moz-ex/iframe-modal-err.html

This is in build 2002062303 on Mac OS X 10.1.5.

Comment 1

[Alfonso Martinez]

*** This bug has been marked as a duplicate of 28586 ***

Comment 2

[benc]

VERIFIED/dupe.