wpsnoop Function add_cors_header() conflicts found in 2 plugins

A php function called add_cors_header() is used in 2 wordpress plugins/themes and could produce a potential conflict if the wrong combination of themes and plugins is used on your site.

To prevent this from happening developers are encouraged to use namespaces and scopes that isolate their functions from colliding with other functions but this is not always done correctly.

We hope this reference helps you to find PHP Fatal error: Cannot redeclare add_cors_header()

The following 2 plugins register a function called add_cors_header():

Plugin
Appeto
WP-CORS