mms.cfg wildcard all url

There is not an "allow everything on the web" option.

The feature exists for enterprises that have discrete, mission-critical applications that cannot be replaced before the end of the year.  This feature exists to allow administrators to specifically allow those critical applications.  The AllowListPreview and TraceOutputEcho options exist to help you identify the list of entries that you would need to add for your organization. 

You can find more details on how to use these features (I noticed some typos above) in the "Enterprise Enablement" section of the Flash Player System Administrator's Guide, here: 

https://www.adobe.com/devnet/flashplayer/articles/flash_player_admin_guide.html