Resize Automatically does not work in latest version Firefox and IE11

• Type: Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.0.0 DXP FP11, 7.0.0 DXP SP2, Master
• Fix Version/s: 7.0.0 DXP SP2, 7.0.0 DXP FP13, 7.0.0 DXP SP3, 7.0.3 CE GA4, 7.1.X, Master
• Component/s: WCM, WCM > IFrame portlet
• Labels:
  • jp-support
  • liferay-digital-enterprise-70-sp3
  • liferay-fixpack-de-13-7010
• Branch Version/s:
  7.0.x
• Backported to Branch:
  Committed
• Fix Priority: 4
• Git Pull Request: https://github.com/brianchandotcom/liferay-portal/pull/47337

Issue
Resize Automatically does not work in latest version Firefox and IE11.

Steps to reproduce

1. Start DXP SP1 + DE10
2. Remove Hello World portlet where is placed on Welcome page to reduce the page height than 600px (because IFrame portlet's height is 600px by default)
3. Add a Public Page named iframe
4. Place IFrame portlet on the iframe page
5. Open Configuration of the IFrame portlet
6. Input Welcome page's URL (http://localhost:8080/web/guest/home) to Source URL
7. Check that Resize Automatically is enabled by default (Do not change it)
8. Save
9. Access the page which placed IFrame portlet using latest version Firefox

Actual results
Resize Automatically does not work in Firefox and IE11 even if they're latest version. A large block of whitespace is introduced under the iFrame portlet's bounding box.

Expected result
Resize Automatically should work in Firefox / IE11 as with Chrome, Safari, Opera. A normal/acceptable amount of whitespace is present when this option is selected.

Reproduced in
DXP SP1 + DE10
ee-7.0.x (e5993a0ac5252525f04fe2c5b94c40e2d1bc7e43)
master (fb843f07de36f0855f862f642cfb9e49886b02a2)