2.2.16 [W3C-HTML52] Section 4.7.7. The embed element

C0022: The user is not provided an option to override the sandbox and instantiate the plugin anyway

The specification states:

 ... The embed element
     ...
     ... The user agent may offer the user the option to override the sandbox and 
     instantiate the plugin anyway; if the user invokes such an option, the user agent 
     must act as if the conditions above did not apply for the purposes of this element.

EdgeHTML Mode

The user is not provided an option to override the sandbox and instantiate the plugin anyway.