Bugs and Other Issues

Introduction

This page lists any bugs in Opera I've found. Most of them link to test pages which have been stripped back to the bare essentials - they don't have my usual site 'look'.

Where known, bug numbers for the Opera bug tracking system are given.

CSS

~~Screen styles applied to the body element are incorrectly applied when printing. (#forgotten, but I have been told #126732 is outstanding on this issue)~~
Collapsed table borders are rendered inconsistently compared to IE and Gecko (#forgotten)
~~Dynamically setting an image for list bullets fails (#139444)~~
~~Dynamically changing table cell borders are rendered incorrectly when the table element itself has a border (#139941)~~
~~Fixed positioning combined with a z-index results in the page becoming much taller than it should be, with a lot of extra empty space (#143292)~~
~~Opening tags of nested forms are ignored (#143308)~~
~~CSS Positioning Bug - A weird one where multiple absolutely positioned elements inside relatively positioned ones are incorrectly positioned, except for the first one. (#156776)~~
Medium font size not always identical to unstyled (#161031)
Cell border bug - Borders corresponding to some table cells are drawn over the content of other cells (#202724)

HTML

<marquee> scrolldelay and truespeed attribute values are not implemented correctly (#124731)

UI

Quick find drop-down context menu is not appropriate (should not display) (#165319)

Other

~~Form option values not correctly retrieved (#134892)~~
Java MIME Types not reliably reported (#148560)
onContextMenu not supported (#165310)
window.onload is aliased to document.onload, which has caused a problem in a page where the document.onload handler had assumed the window.onload handler had already run (#166183)
~~XMLHttpRequest.send(null) does not work for POST requests (#202702)~~

Personal Wishlist

All the above bugs fixed!
~~Fix the iframe "always on top" issue.~~
Save web pages:

in MHTML format (RFC 2557 - MIME Encapsulation of Aggregate Documents, such as HTML (MHTML)).

in such a way as to use the built-in MS-Windows association between filename.html and filename_files. The web page is saved in the html file, any files it needs or references are stored in the corresponding _files folder.
~~Undetectable document.all support.~~ Effect can be achieved via user js.
Full support for CSS2.1 and any modules of CSS3 that are at least Candidate Recommendations (currently Selectors, Color, Text, Ruby, Paged, UI, and Media).
~~That full-screen surfing to sites with no projection styles falls back to screen styles instead of no styles.~~

Other Opera Bug Collections

Position Is Everything
Opera 7 Wiki: Opera 7 CSS Issues
Opera 7.5 > CSS and XHTML Bugs
Some CSS bugs in Opera - Has more links to other bug pages!
Browser bugs - Not just Opera bugs, but Mozilla and IE bugs too.

Opera Software's Bug Tracking System

If you find any bugs yourself, submit them to Opera's Bug Tracking System. Extra information for a bug may be sent to "bug-#@bugs.opera.com"