[BUG]: Panel is transparent on Edge but not in Chrome

[gunnargantzel]

Describe the bug
The Panel is transparent on Microsoft Edge, but working properly (not transparent) on Chrome.

To Reproduce
Steps to reproduce the behavior:

1. Create a panel in Canvas App
2. Open the app in Microsoft Edge', the header and button area is transparent.
3. Open the app in Chorme, the header and button area is not transparent.

Expected behavior
Panel shoul look and behave the same on Chrome and Microsoft Edge

Screenshots
(On Edge)
(On Chrome)

Additional context
NA

AB#962

[sharisiri]

Also experiencing the same bug. Let me know if you find a workaround.

[denise-msft]

I'm not sure if this is a supported scenario, any surface should have 100% opacity for accessibility.

Is it expected that the panel background is transparent? Does transparency otherwise work for layout containers in chrome?

[denise-msft]

@sharisiri closing due to inactivity, please reopen with more recent details if this is still occurring.