Bug 1733475 Comment 0 Edit History

Note: The actual edited comment in the bug view page will always show the original commenter’s name and original timestamp.

This was originally reported in https://github.com/webcompat/web-bugs/issues/84751

To reproduce:

1) Open the attached test case in Firefox release and observe the block on the right

Expected:
The panel inside the iframe is fully visible

Actual:
The width of the panel is around 5px, so only a small part of it is visible

The issue only happens when I change the display property of a wrapper element dynamically with a setTimeout and works ok if the element is displayed by default. This is just to illustrate the behaviour - on the original site, it is changed on click.

From mozregression:
```
 2:43.09 INFO: Narrowed integration regression window from [98a3f624, a74fee26] (3 builds) to [98a3f624, 58909c79] (2 builds) (~1 steps left)
 2:43.09 INFO: No more integration revisions, bisection finished.
 2:43.09 INFO: Last good revision: 98a3f624dd0822d471b46703d4cb0c8bafc1674b
 2:43.09 INFO: First bad revision: 58909c79343bc9145173cfcd54c277cd343eb2a8
 2:43.09 INFO: Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=98a3f624dd0822d471b46703d4cb0c8bafc1674b&tochange=58909c79343bc9145173cfcd54c277cd343eb2a8
```
This was originally reported in https://github.com/webcompat/web-bugs/issues/84751

To reproduce:

1) Open the attached test case [84751.html](https://bug1733475.bmoattachments.org/attachment.cgi?id=9243806) in Firefox release/ Nightly and observe the block on the right

Expected:
The panel inside the iframe is fully visible

Actual:
The width of the panel is around 5px, so only a small part of it is visible

The issue only happens when I change the display property of a wrapper element dynamically with a setTimeout and works ok if the element is displayed by default. This is just to illustrate the behaviour - on the original site, it is changed on click.

From mozregression:
```
 2:43.09 INFO: Narrowed integration regression window from [98a3f624, a74fee26] (3 builds) to [98a3f624, 58909c79] (2 builds) (~1 steps left)
 2:43.09 INFO: No more integration revisions, bisection finished.
 2:43.09 INFO: Last good revision: 98a3f624dd0822d471b46703d4cb0c8bafc1674b
 2:43.09 INFO: First bad revision: 58909c79343bc9145173cfcd54c277cd343eb2a8
 2:43.09 INFO: Pushlog:
https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=98a3f624dd0822d471b46703d4cb0c8bafc1674b&tochange=58909c79343bc9145173cfcd54c277cd343eb2a8
```

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