The security certificate protecting this url is insecure errors are comming up on Internet Explorer in

Fixed Issue #9414689


Patrick M.
Oct 18, 2016
This issue is public.
Found in
  • Internet Explorer
Found in build #
Reported by 2 people

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Steps to reproduce

Hi when I visit for example

and open f12 tools, I am getting these errors

SEC7133: The security certificate protecting this url is insecure: data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAABkEAIAAACY3hF0AAAAd0lEQVR4Ae1OJRYCARD9b04HB9i9AAfA8lZcCy4Fibhk3KlEroA7g5PQvuM+n7bN3W7fJlxJdu/cFEusCVlUMSS2IIEyQcNuThKrYESUILAEL7EIiX3EStbDSVBAz05i8dYTcHbPPQlBpAkWxFEi7vGIx39Akt0JDx8zhdonkHMAAAAASUVORK5CYII=

It’s an image base64 encoded in CSS



I doint know what category this goes in.

WMF says it is not broken there end it’s broken in the browser.

Microsoft Edge works but Internet Explorer doesent


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    Comments and activity

    • This may be a regression since I think the error dosent show in the latest windows 10 anniversary update.

    • Microsoft Edge Team

      Changed Assigned To to “Ibrahim O.”

    • I have also started noticing this issue (also with base64 images) ever since I upgraded to latest insider build. My IE is at build 11.1000.14955, and the website I am experiencing this issue on is
      I can also verify that the website works correctly on the stable channel (IE 11.321.14393).

    • Microsoft Edge Team

      Changed Status to “Not reproducible”

    • Thank you for your feedback. I see the issue is repro only on a specific build which is not repro on current public stable build neither on our internal builds means that the issue was a temporary regression that introduced and fixed. We will close this bug as “Not repro” now but please feel free to reactivate or provide feedback if you see the issue persists in upcoming insider preview updates.

      All the best,
      The MS Edge Team  

    • Changed Status from “Not reproducible”

    • Hi I still get the error using the latest windows 10 insider build 14965.

      Open the f12 developer tools then visit

      You will see errors like

      SEC7133: The security certificate protecting this url is insecure: data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAABkEAIAAACY3hF0AAAAZklEQVR4AWP6//9TxIJcJgYwGEHUH4bHIOrN/2IQ9ZqhGMH7/4IhHMR78t8KQlmDqMcQ3oP/chBKHkwxgHn3oYJg6j9U7s5/JjR9CMNeMIQh8V5DHAGx9v+H//0g3heG1Xj9MEoBABg9NcOxKunPAAAAAElFTkSuQmCC

      I am using internet explorer 11.

    • Microsoft Edge Team

      Changed Assigned To to “Ibrahim O.”

      Changed Status to “Fixed”

    • Thank you for the update. We cannot guarantee which fix is going to be shipped with which specific update, but I highly expect that will be in the next or second update.

      All the best,
      The MS Edge Team  

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