Content not loaded over https with self-signed certificate in Microsoft Edge

Question

Recently, I upgraded my test VM to Windows 10 version 1607 from version 1511.

After upgraded, my application is no longer working with Microsoft Edge any more.

Here is the scenario:

Application frontend uses AS3, it has many SWF objects.

Application uses self-signed certificate by default.

Use Microsoft Edge to access this application over https, frontend couldn't be loaded properly. Right-click, was showing "movie not loaded".

Enabled http connection, access it by Edge, no problem.

In early this month, I've contacted Microsoft Support to check this problem. Just got confirmation from him this afternoon. He said he also reproduced this issue on his machine. It is not an issue of Microsoft Edge.

Anyone has same problem?

Thanks

Brayden

jeromiec83223024 · Answer

In general, Flash Player takes the approach of not asking end-users to provide exceptions for security questions. If you have the CA certificate in the list of trusted CAs on the client, it *should* validate, but it's clearly not. You can also use the Flash Player debugger to see if there are useful error messages or log entries that might explain why we're not allowing a specific connection (it may be related to cross-domain policies and http vs https distinctions, as an example).

The Flash Player security whitepaper is a pretty good resource for troubleshooting ideas:

White paper: Adobe Flash Player 10 security | Adobe Developer Connection

In my personal opinion, you're better off using a real SSL certificate. Verisign offers inexpensive Intranet SSL certificates, and Lets Encrypt offers free certs.

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