Microsoft Learn Lab Stuck Loading

Question

The labs for Microsoft Learn seem to have suddenly been stuck on a loading loop, unable to display the launch button. I have viewed the runtime compilation and believe these two errors to be the cause:

Failed to execute 'postMessage' on 'DOMWindow': The target origin provided ('https://client-api.arkoselabs.com') does not match the recipient window's origin ('https://learn.microsoft.com').

@api.js:15@api.js:15Uncaught (in promise)

1. Object
   1. Error: "API consumer not enabled"
   2. Status: 0
   3. [[Prototype]]: Object
      1. constructor: ƒ Object()
      2. hasOwnProperty: ƒ hasOwnProperty()
      3. isPrototypeOf: ƒ isPrototypeOf()
      4. propertyIsEnumerable: ƒ propertyIsEnumerable()
      5. toLocaleString: ƒ toLocaleString()
      6. toString: ƒ toString()
      7. valueOf: ƒ valueOf()
      8. defineGetter: ƒ defineGetter()
      9. defineSetter: ƒ defineSetter()
      10. lookupGetter: ƒ lookupGetter()
      11. lookupSetter: ƒ lookupSetter()
      12. proto: (...)

See if you can figure why it has stopped loading; I have troubleshooted the issue earlier (trackers and cookies allowed, adblockers and vpns off, incognito mode, cleared browser, etc), so it might be a server side issue.

Thanks in advance!

Answer 1

The lab remains stuck on “Loading lab...” across Chrome, Edge, and Incognito mode.

Console errors:

• Uncaught (in promise): API consumer not enabled
• ArkoseLabs postMessage target origin mismatch

Module:

https://learn.microsoft.com/en-us/training/modules/power-bi-effective-reports/9-lab

Design Power BI reports – Exercise, Unit 9 of 11

The issue has continued for more than one day. Please check the lab/API provisioning for my account or this exercise.

Answer 2

Hi William Reed

Thanks for doing the detailed testing!

The "API consumer not enabled" error points to a backend/API configuration failure, while the ArkoseLabs postMessage error may indicate a problem with the verification component. Since you've already tested cookies, extensions, VPNs, cache clearing, and InPrivate mode, there is little left to troubleshoot locally. Similar Microsoft Learn lab loading issues have been reported by other users and sometimes require investigation by the Learn team.

To help Microsoft investigate, use the Feedback link at the bottom of the affected Microsoft Learn page, since this is a public forum, no one here can have a look at what's happening behind the scene, and include:

• The exact Learn module URL
• A screenshot of the Console errors
• A screenshot of any failed Network requests
• Confirmation that the issue occurs across browsers/devices/networks

This should provide the Learn team with the evidence needed to determine whether a backend service or account provisioning issue is preventing the lab from loading.