Microsoft Edge doesn't work with Windows Integrated Authentication

By design Issue #4776775


Sep 29, 2015
This issue is public.
Reported by 21 people

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Steps to reproduce


Repro Steps:

*I open Microsoft Edge
*I type the url of my website or Reporting Services website (either with http://localhost/ or http://mymachinename)
*The error described above occurs.

Expected Results:

When Accessing my website or Reporting Services websites it must:
*Use Windows Integrated Authentication and display the website inmediately
*Ask for windows credentials and load the website correctly.

Actual Results:

Dev Channel specific:



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    Comments and activity

    • Microsoft Edge Team

      Changed Assigned To to “Sermet I.”

      Changed Assigned To to “Venkat K.”

      Changed Assigned To from “Venkat K.” to “Crispin C.”

      Changed Status to “Confirmed”

      Changed Assigned To from “Crispin C.” to “IE S.”

      Changed Status from “Confirmed” to “By design”

    • Hello,

      Thank you for providing this information about the issue. Localhost access can be used to escape browser sandboxes, and so Edge used to block it completely. However, some sites and scenarios required localhost access, and so after careful analysis, we enabled localhost for the Internet app container only. We also special-cased “localhost” as an origin to render in the Internet sandbox so that it could access localhost. A consequence of that is this bug, because WIA (Windows Integrated Authentication) is not supported on the Internet.

      A work-around for this is to
      1.      Enable loopback in the intranet app container as described here
      2.      Access your localhost machine by using its fully qualified domain.

      Best Wishes,
      The MS Edge Team

    • Hi MS Team:

      IN a brand new clean machine Windows 10.0.15063, tried all the steps (internet zones, enable loopsback with CheckNetIsolation, etc, etc and I still cannot access localhost (in my case for Power Bi Report Server)

      It is extremely frustrating! : I have been able to do it with IE, Chrome, Firefox, but not Edge

      Any updates? Ideas?

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