window.localStorage raises an unspecified error when accessed in a local file

Confirmed Issue #8816771 • Assigned to Shawn P.


Marc L.
Sep 9, 2016
This issue is public.
Found in
  • Microsoft Edge
Found in build #
Reported by 6 people

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Steps to reproduce


To (try to) reproduce:

  1. Update to KB3176936,
  2. Open a local html file,
  3. In the console type "window.localStorage", it should raise an unexpected error (it used to be “undefined”).



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    Comments and activity

    • Note that I’ve tested on two other windows 10, one which was not up-to-date and where the bug is not present and one "windows insider"’s computer (where the bug is there).

    • Microsoft Edge Team

      Changed Assigned To to “Brad E.”

      Changed Assigned To to “Venkat K.”

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

      Changed Status to “Confirmed”

      Changed Assigned To from “Ali A.” to “Shawn P.”

    • Note that unsurprisingly this happen also with "window.sessionStorage".

    • I can confirm that I have this issue. My Surface Pro 3 is on the Creators Update and has all monthly updates installed.

    • Same as Matthew B.
      I also face this issue (Desktop Dell PC on the Creators Update, all updates installed and multiple Windows 10 Mobile devices).

      I noticed this issue while developing UWP app. I cannot load my Html file (from app local storage) in the Webview as it uses JavaScript file (located also in the app local storage).
      I tested it in Edge (from Desktop) and it doesn’t work either.

      BUT it works if I use my HTML+JS files in a webview on a WindowsPhone 8.1 Winrt App.

      Could you fix it for Edge (Windows 10), please?

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