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Issue 669282 link

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Issue metadata

Status: WontFix
Owner:
Closed: Dec 2016
Cc:
Components:
EstimatedDays: ----
NextAction: ----
OS: Linux , Windows , Mac
Pri: 2
Type: Bug
Team-Accessibility



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LIGHTHOUSE EXTENTION: color contrast issues

Reported by weirdoonthebus@gmail.com, Nov 28 2016

Issue description

<b>Chrome Version       : <Copy from: 'about:version'></b>
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL, along with the version, after other browsers where you
have tested this issue:
     Safari:
    Firefox:
         IE:

What steps will reproduce the problem?
(1) running an audit on my site [masterdemolitioninc.com]

What is the expected result?
all (or at least most) elements pass accessibility color contrast rule.

What happens instead?
several elements get incorrectly flagged as not having enough contrast. the particular elements are using #007BED for the background and #FFF for the text. Checking this on [accessible-colors.com] reveals that it does pass AA but not AAA. This more detailed result would be helpful if shown in lighthouse rather just outright failing.

Please provide any additional information below. Attach a screenshot if
possible.

 
Screen Shot 2016-11-28 at 3.56.10 PM.png
22.6 KB View Download
Screen Shot 2016-11-28 at 3.56.18 PM.png
8.2 KB View Download

Comment 1 by ajha@chromium.org, Nov 29 2016

Components: Platform>Extensions
Labels: -Pri-3 M-57 Pri-2
Tagging with current canary milestone.

Comment 3 by ajha@chromium.org, Nov 30 2016

Cc: ajha@chromium.org
Components: UI>Accessibility
Labels: OS-Linux OS-Mac OS-Windows
Status: Untriaged (was: Unconfirmed)
Able to reproduce the issue on the latest canary(57.0.2937.0) and the latest stable(54.0.2840.99/98/100) of Windows-10, Mac OS 10.11.6 and Linux Ubuntu 14.04. 

Marking this as Untriaged as the Lighthouse extension requires <M-54 chrome versions to add from CWS.
669282_Actual.png
195 KB View Download
Components: -Platform>Extensions
Owner: paulir...@chromium.org
It seems like this is not actually an extensions platform issue, but rather an issue in the extension code itself. Passing off to paulirish for further triage who seems to be a frequent contributor according to:

https://github.com/GoogleChrome/lighthouse/graphs/contributors

Status: WontFix (was: Untriaged)
thanks asargent.

the correct place to report this bug is https://github.com/GoogleChrome/lighthouse/issues

however we'd actually tell you that upstream is here: 
https://github.com/dequelabs/axe-core/

Their chrome extension should be offering the same results you are getting via lighthouse. see screenshot.
If you get diff results via their extension and lighthouse then its our bug and we'd love to discuss it more on our github.

Cheers!

Screen Shot 2016-12-02 at 3.36.49 PM.png
116 KB View Download
I don't think this does pass AA, anyway: http://leaverou.github.io/contrast-ratio/#white-on-%23007BED

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