Bugs in Opera

© Nisse Engström | Updated: 2010‑10‑06 Reviewed: 2010‑06‑02
Valid HTML 4.01 / CSS2.1

Warning

This page has not been updated since 2010-10-06. I abandonded the Opera bug reports when Opera could no longer be installed on my old Windows-98 clunker.

Contents

See also the Opera Heisenbugs page for the not-even-unreported bugs.

Bug reports

Latest version tested: Opera 10.62 (build 3500) on Windows 98SE.

Reported bugs

This is a table of bugs that I have reported against various versions of Opera. So far, all reports are against Opera on Windows 98SE. See table legend for details.

Bugs I have reported
SVersionSeverityPartReportLinksSummary
SVersionSeverityPartReportLinksSummary
F 7.51 Significant Forms 146544 Test case When choosing an option in a <select> element, the menu sometimes revert to the pre-selected option.
F 7.51 Trivial User Interface 146545 Test case URLs longer than 1283 characters can become invisible in the adress field.
F 7.52 Trivial Display 147309 A floated <button> is rendered with only text and no button.
F 7.52 Trivial Display 147310 A <button> with CSS-margins can result in the button-text being rendered outside the button.
F 7.52 Trivial Display 147311 Floated image and alt-text displayed simultaneously.
F 7.52 Spec Violation Forms 147511 Test case The initial value of the 'value' attribute of <option> is not set to the contents of the element.
F 7.52 Trivial Display 147604 <tbody> that changes background colour on ':hover', when <table> has 'border-collapse: collapse', is incorrectly painted.
F 7.52 Other Severe Display 147605 <pre> with CSS 'word-spacing' is displayed incorrectly.
F 7.52 Other Severe Forms 147608 Test case <input> and <textarea> with CSS ':after' and ':hover' badly broken.
P 7.54 Spec Violation Not Listed 149973 Opera’s 'User-Agent:' header violates RFC 2616.
F 7.54 Trivial User Interface 149974 Test case Links panel strips fragment identifiers in URLs.
F 7.54 Significant Display 149975 An absolutely positioned element incorrectly affects the flow of a parent element.
U 7.54 Significant Display 149976 Incorrect placement of absolutely positioned element.
P 7.54 Trivial Display 150174 Incorrect vertical position of hyphens.
F 7.54 Significant Display 150175 Test case Incorrect placement of absolutely positioned element.
F 7.60p1 Significant Display 153231 Peculiar behaviour of CSS 'display: table-cell; text-align: justify'.
P 7.60p1 Trivial User Interface 153854 Test case Double-clicking an named anchor doesn’t select text. [Bug found by Marek Mänd]
P 7.60p1 Spec Violation Forms 155097 Inconsistent handling of line breaks in <textarea>.
B 7.60p1 Spec Violation Display 155098 <TD> incorrectly inherits 'text-decoration' from <TR>.
F 7.60p2 Significant User Interface 156294 Test case Anchor with CSS 'z-index' makes Opera sluggish.
F 7.60p3 Crashes Opera Forms 157679 Form and back-button crashes Opera.
F 7.60p3 Spec Violation ECMAScript 157951 Test case Wrong element returned by getElementById().
F 7.60p3 Crashes Opera ECMAScript 157952 <a> with 'target', and <frameset> with 'name' and 'onload' crashes Opera.
F 7.60p3 Other Severe Display 157953 <textarea> in table cell only partially visible.
F 7.60p4 Other Severe Display 159110 Test case Dead links caused by integer overflow in text-indent.
F 8.00b1 Significant Display 161404 <table align="right"> causes overlap with other elements.
F 8.00b1 Significant Display 161405 Floated <div><table> causes overlap with other elements.
F 8.00b1 ? ? 161423 Update <font><br><font> causes some amount of text to disappear. [Update to report filed by Brian]
F 8.00b1 Other Severe Display 162745 Fixed + absolute position cause missing hover.
F 8.00b2 Other Severe Display 165160 <textarea> and :after pseudo-element causes mis-parsing of HTML.
F 8.00b3 Trivial User interface 166742 Image in zoom widget obscures zoom level.
U 8.01 Spec Violation Display 173095 HTML attribute colspan=0 broken
F 8.01 Significant Display 173096 Test case CSS :hover not applied when used with combinators.
F 8.01 Trivial User Interface 173098 Back and Forward functions loses information in Info panel.
U 8.10p2 Significant ECMAScript 176873 Bizarre correlation between Javascript/DOM focus() method, an external stylesheet and certain HTML elements.
F 8.02 Spec Violation Display 179377 Wrong specificity of style attribute.
F 9.00b2 Other 212236 Syntax error in JavaScript larger than 32kb.
U 9.02 Spec Violation Web page problem 232554 Opera incorrecty caches HTTP 302 responses.
F 9.02 Other problem Opera Installation 232555 Keyboard shortcuts for Platform MCE are triggered on Windows 98SE.
B 9.02 Spec Violation Web page problem 233799 RegExp internal CharacterRange() not throwing.
B 9.02 Spec Violation Web page problem 233801 RegExp backreference in CharacterClass not throwing.
F 9.02 Spec Violation Web page problem 233803 JavaScript decodeURIComponent() does not decode %00.
U 9.10 Other problem Web page problem 257519 Elements style with 'line-height: 0' is difficult to select.
F 9.20 Other Problem Not Sure/Other 260693 Test case JavaScript errors do not appear in Error console when using site preferences.
F 9.20 Other Problem Web page problem 260694 Test case Images cannot be saved unless pre-loaded.
F 9.20 Spec violation Web page problem 260696 Cookies sent with incorrect $Path attribute.
F 9.20 Spec Violation Web page problem 261884 Incorrect HTML parse tree when optional tags missing.
F 9.20 Other problem Web page problem 262816 Nul char causes words to disappear.
F 9.21 Other Problem Not Sure/Other 271435 Test case Alt-x is totally bizarre.
U 9.22 Other problem Not sure/Other 277116 Global preferences affect site-specific preferences.
F 9.22 Other problem Not sure/Other 277118 Preferences dialogue closes for no apparent reason.
U 9.23 Other problem Not sure/Other 286756 Preferences: Shortcuts setup affects setting for mouse gestures.
F 9.50a1 Other problem Web page problem 287515 Incomplete rendering of table row borders.
F 9.23 Spec violation Web page problem 289058 float and clear makes top-margin disappear.
U 9.24 Other problem Web page problem 292805 A particular mix of HTML and CSS causes unwanted scrollbar.
F 9.50b Other problem Not sure/Other 298615 Screen shot Incorrect repainting of Tab and Address bar.
B 9.50b Crashes Opera Not sure/Other 298616 Crash log Opera crashes on exit.
F 9.50b Crashes Opera Not sure/Other 298617 Speeddial crashes Opera.
F 9.50b Other Problem Web page problem 298618 Scrolling causes incorrect painting of text-shadow.
F 9.50b Crashes Opera Web page problem 298631 Crash log Freeze on <http://siteadvisor.com/>.
F 9.50b Other problem Web page problem 309951 Saving web archive results in truncated file.
F 9.26 Other problem Web page problem 317562 Incorrect parsing of character entity.
U 9.51 Other problem Web page problem 346323 Opera shows download dialog for Content-Type: text/plain; charset=iso-8859-1.
U 9.52 Other problem Not sure/Other 346326 Screen shot Skin thumbnail images not displayed.
U 9.51 Other problem Not sure/Other 346328 Overflowing dialog when redirect from POST to GET.
U 10.00 Other problem Web page problem DSK-266192 Test case Resized image map causes off-target coords.
F 10.00 Crashes Opera Web page problem DSK-266193 Normal browsing leaks resources.
F 10.00 Crashes Opera Web page problem DSK-266196 Speeddial+offline mode crashes Opera.
U 10.00 Other problem Not sure/Other DSK-266198 Skin thumbnail images do not load.
F 10.00 Other problem Not sure/Other DSK-266200 Opera’s own style sheets throw warnings.
U 10.51 Other problem Not sure/Other DSK-292383 "Accept cookies only from the site I visit" is broken.
U 10.51 Other problem Not sure/Other DSK-292384 Numbers overlap in Zoom field.
U 10.51 Other problem Not sure/Other DSK-292385 Wasteful linewraps in Info panel.
U 10.51 Spec violation Web page problem DSK-292386 <noscript> causes incorrect DOM tree.
U 10.51 Other problem Not sure/Other DSK-292387 Scrolling page with tooltip causes garbled display.
U 10.51 Other problem Not sure/Other DSK-292388 Incorrect keyboard behaviour in Shortcuts prefs.
F 10.51 Crashes Opera Web page problem DSK-294472 setInterval() and Reload image crashes Opera
U 10.51 Other problem Web page problem DSK-294752 Long <frame> causes slow scrolling.
U 10.51 Other problem Web page problem DSK-294856 Navigating to anchor fails under certain conditions.

Unreported bugs

This is a table of bugs that I have not reported, for various reasons. Those reasons may include:

The exact reason should be stated in a Note: in the bug reports.

See table legend for details.

Bugs I have not reported
SVersionSeverityPartReportLinksSummary
SVersionSeverityPartReportLinksSummary
F 7.51 Significant Not Listed i-39 Test case Double quotes in a 'mailto:'-link are not handled correctly when the mail-adress is sent to an external program.
U 7.60p4 Spec Violation ECMAScript i-40 Global onclick property treated incorrectly.
B 8.00b1 Spec Violation ECMAScript i-50
F 8.00b1 Other Severe Display i-41 Negative 'margin-right:' and linewrap causes text to disappear.
F 8.00b1 Other Severe User Interface i-42 The Info panel is the root of all evil.
U 8.00b2 Significant Display i-43 Unicode U+2000..206F not rendered.
U 8.00b2 Spec Violation Display i-44 Incorrect display of <frameset>, with rows or cols with mixed pixels/percentage/relative lenghts. [Bug report 165783 filed by Edith Gran].
F 8.00b3 Trivial Display i-45 Container obscured by CSS overflow: hidden incorrectly affects layout
F 8.01p1 Significant User Interface i-46 "Add to Note" using keyboard doesn’t work. [Bug report 172049 filed by Steven V. Gunhouse].
F 9.00p1 Other Severe User Interface i-49 Test case Certain target attributes are dead when JavaScript is disabled.
F 9.50b Other problem Web page problem i-69 Table row with :target selector sometimes cause background to blink.
B 9.52 Other problem Web page problem i-82 Problem encountered while decoding data.


Contact

Contact me at <http://luden.se/contact/>.

Feedback is appreciated.


  • Nils F. Engström
  • Uppsala