Experience Editor fails with a ProfileCardsPanel.css script error in the console

When opening a page in Experience Editor fails with a script error in the console.

Experience Editor might fail with a console error similar to one of the following due to parsing ProfileCardsPanel.css as a script:

To resolve the issue, download and install the following hotfix:

For Sitecore XP 9.3.0:

Download SC Hotfix 393114-1.zip from this URL https://sitecore.app.box.com/s/8hfommp48f4oc23wqfvnb7kkso3psef5

Be aware that the hotfix was built for a specific Sitecore XP version, and must not be installed on other Sitecore XP versions or in combination with other hotfixes.

In case any other hotfixes have already been installed on a certain Sitecore XP instance, send a request for a compatibility check to Sitecore Support.

Note that the ZIP file contents need to be extracted to locate installation instructions and related files inside. The hotfixes must be installed on a CM instance and then synced with other instances using standard development practices.