Interface hangs / getting error when selecting a file from {drive} macro on Confluence 6.x

Add-on:Connector for Google Drive and Confluence
Question:Interface hangs / getting error when selecting a file from {drive} macro on Confluence 6.x
Answer:

Since Confluence 6, 3rd party URL will need to be added to Confluence Whitelist before being granted access to the application. Here are the steps to add Google URL into Confluence Whitelist:

  1. Go to the Cog Icon  > General configuration.

  2. In the sidebar, under Users & Security, choose Whitelist.

  3. Now enter the following:
    1. Expression: https://*.google.com
    2. Type: "Wildcard expression"
    3. Allow Incoming: True

  4. You should have something that looks like this:

    Click Add