Warning in firefox console for using "zoom"

[Daijobou]

In firefox console there is a warning for tinymce v5 (https://fiddle.tiny.cloud/) and v6 (https://www.tiny.cloud/):

I have it only in german:

Diese Seite verwendet die nicht standardisierte Eigenschaft "zoom". Stattdessen sollte calc() in den entsprechenden Eigenschaftswerten oder "transform" zusammen mit "transform-origin: 0 0" verwendet werden.

translated

This page uses the non-standard "zoom" property. Instead, calc() should be used in the appropriate property values or "transform" together with "transform-origin: 0 0".

[bleutzinn]

The untranslated warning in the Firefox console is:

This page uses the non standard property “zoom”. Consider using calc() in the relevant property values, or using “transform” along with “transform-origin: 0 0”.

[SunFloat]

The above-mentioned problem can cause certain devices/versions to no longer be able to display modals correctly.

[clockwork53]

This issue still persists in TinyMCE version 7.2.1

[tiny-stale-bot]

This issue is stale because it has been open 365 days with no activity. Please comment if you wish to keep this issue open or it will be closed in 30 days.

[tiny-stale-bot]

This issue was closed because it has been stalled for 30 days with no activity.