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Opened 3 months ago

Last modified 3 weeks ago

#50684 new defect (bug)

Font/font-size change on login screen

Reported by: superpoincare Owned by:
Milestone: Awaiting Review Priority: normal
Severity: normal Version: 5.4.2
Component: Login and Registration Keywords:
Focuses: ui, css, administration Cc:


On Windows 10, when a user logs in, the font and the font-size in the input boxes change.

To be more precise, the wrong font and font-size is initially displayed. Only after clicking, the correct font and font-size appear.

A recording:


Change History (6)

#1 @SergeyBiryukov
3 months ago

  • Component changed from Administration to Login and Registration
  • Focuses ui css added

This ticket was mentioned in Slack in #core-css by ryelle. View the logs.

7 weeks ago

#3 @sabernhardt
6 weeks ago

That happens with logins other than WordPress; it's a Chrome Chromium issue. Correction: it's any Chromium-based browser (Chrome, Edge, Opera).

The font styles (font-family and font-size) are not honored and it falls back to the browser default:
font: 400 13.3333px Arial; (for me, on Windows)

There might be a way to work around that, but I haven't found it. (-webkit-autofill did not work for font styles.)

Last edited 5 weeks ago by sabernhardt (previous) (diff)

#4 @SergeyBiryukov
6 weeks ago

Just noting that the Chrome issue above is closed as WontFix, as the original change was a security fix:

This is due to a change, rogerm@ landed in M74. https://crrev.com/9e68c4db781b71e9ea772ab60d34c7f10e100b57, which is due to a security requirement that I cannot elaborate on, yet. Sorry, but I have to mark this as Won't fix.


This is closed as Won't Fix because allowing the website to style the font enables it to steal data that the user has not selected to share with the website via side channel attacks. We may need to change the entire interaction pattern but don't have anything ready, yet.


Last edited 6 weeks ago by SergeyBiryukov (previous) (diff)

This ticket was mentioned in Slack in #core-css by kirstyburgoine. View the logs.

5 weeks ago

#6 @garrett-eclipse
3 weeks ago

Hmm if we can't change it in Chrome I wonder if we just make that the baseline. Setting the style of the form to use that font/font-size so the text doesn't change when you start entering text.

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