White square covering the tree site

Question

The customer was facing a random display error in the content manager.
The display error was a white square covering the tree site and then avoiding the navigation in this manager.

Cause

The cause was not really established as a workaround has been provided but only for Chrome

Solution

The workaround for Chrome is this one:

  1. Flush the browser cache
  2. In Chrome, open the URL: chrome://flags/#disable-javascript-harmony-shipping
  3. Click to Enable if this flag is disabled
  4. Restart Chrome and re-test the access to the content manager.

The customer has also provided the below workaround for his users who do not use Chrome as default browser:

  • To click to the refresh button of the tree site in order to vanish the white square.