Content from loopback addresses (e.g. should not be considered mixed content

Fixed, not yet flighted Issue #11963735


Birunthan M.
May 10, 2017
This issue is public.
Found in
  • Microsoft Edge
Standard affected
Secure Contexts

Reported by 9 people

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Steps to reproduce

According to the spec, content from loopback addresses should no longer
be treated as mixed content even in secure origins. See:

In other words, e.g. fetch('') on a HTTPS site should be allowed without triggering the mixed content blocker.

Note Chrome (and soon Firefox) only whitelist ‘’ and '::1’. See:


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    Comments and activity

    • Changed Steps to Reproduce

    • Microsoft Edge Team

      Changed Assigned To to “Steven K.”

      Changed Assigned To to “Venkat K.”

      Changed Assigned To from “Venkat K.” to “Ali A.”

      Changed Assigned To from “Ali A.” to “Rajat J.”

      Changed Status to “Confirmed”

      Changed Status from “Confirmed” to “In progress”

      Changed Status from “In progress” to “Fixed”

      Changed Status from “Fixed” to “Fixed, not yet flighted”

    • Has there been discussion of backporting this fix in a security update for IE11? In order to migrate to this model, we would need it to be supported across all major browsers, and IE11 looks like it’s becoming the sticking point.

    • Does “FIXED, NOT YET FLIGHTED” mean this issue will be fixed in a future release of Edge? Is there a particular version that will contains the fix?

    • #16110645 was closed as a duplicate of this bug with an indication that the bug was solved in Edge 16245. However, this bug report is still listed as "Fixed, Not Yet Flighted". Please advise what that means…has the intended fix been released or not?

    • Apologies for the lack of update to this issue. There’s a bug in the logic and fields we search on to automatically update the public bug status in some combinations. 

      This bug is closed and released. We shipped it with the Windows 10 Fall Creators update (1709). Again apologies this bug wasn’t automatically update to report the correct status.

    • Jason M. - Appreciate the follow-up. However, I would urge the Edge Team to review the issue again. My understanding is that the Windows 10 Fall Creators update (1709) introduced this bug rather than resolving it.

    • I agree. I have tested this issue with the latest version of Edge, but am still seeing the SEC7111: HTTPS security is compromised error. Jason M., you may want to review this ticket.

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