1706159 - Text disappears when an iframe is loaded

Status: RESOLVED DUPLICATE of bug 1706068

(Core :: Graphics: WebRender, defect)

Description

[Kagami Rosylight [:saschanaz] (they/them)]

1. Load https://codepen.io/tigt/post/separators-inside-the-select-element#bizarre-webkitblink-feature-1
2. Wait until an iframe is loaded, in "Bizarre WebKit/Blink feature" section
3. See the texts disappear
4. Remove the iframe from the tree in dev tools
5. See the texts are restored

Comment 1

[Kagami Rosylight [:saschanaz] (they/them)]

Attachment: broken

Comment 2

[Kagami Rosylight [:saschanaz] (they/them)]

Attachment: broken, after iframe load

Comment 3

[Timothy Nikkel (:tnikkel)]

I was not able to reproduce.

Comment 4

[Kagami Rosylight [:saschanaz] (they/them)]

Attachment: prefs.js

This is my prefs, and I'm on Core i7 1065G7 (which has an integrated GPU) if it helps.

Comment 5

[Glenn Watson [:gw]]

I can reproduce this if fission is enabled, which probably makes sense since that affects how / when iframe display list items appear in the WR display list.

Comment 6

[Timothy Nikkel (:tnikkel)]

I guess maybe Windows only then? (I tried with both states of fission.)

Comment 7

[Jim Mathies [:jimm]]

The patchwork that caused this was backed out.