2.2.3 [HTML5] Section 2.6.3 Encrypted HTTP and related security concerns

C0004: There is no warning if the user visits a page that uses less secure encryption than it did on a prior visit by that user

The specification states:

 2.6.3 Encrypted HTTP and related security concerns
     ...
     User agents should warn the user that there is a potential problem whenever the user 
     visits a page that the user has previously visited, if the page uses less secure 
     encryption on the second visit.

All document modes (All versions)

There is no warning if the user visits a page that uses less secure encryption than it did on a prior visit by that user.

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