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SafeExamBrowser / seb-win-refactoring

Safe Exam Browser for Windows.
https://www.safeexambrowser.org/news_en.html
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Cant choose organisation when starting SEB - Blank White Window #868

Closed EnKoppTe2 closed 2 months ago

EnKoppTe2 commented 2 months ago

Logs 2024-04-26_08h34m51s_Browser.log 2024-04-26_08h34m51s_Client.log 2024-04-26_08h34m51s_Runtime.log 2024-04-26_08h34m51s_Service.log

Describe the Bug When the student starts the test, Safe Exam Browser starts with no issue. When the browser is fully started there should be a box where the students can log in to their microsoft accounts. On some PCs it works flawlessly (we've tried on a admin pc and "local" pc not connected to and AD domain) and on some the box is just white and will not load. Ive tried to reinstall SEB a couple of times, tested different verions (3.4.6 upto 3.7) with the same issue.

Steps to Reproduce Steps to reproduce the behavior:

  1. Go to skolverket
  2. Click on sebs://www.skolverket.se/download/18.51c904b718e5404561cce/1710861162726/vt24_fed.seb
  3. SEB starts up and should get a login window but its just White.

Expected Behavior A window where the student can log in.

Screenshots IMG_20240426_084045782

Version Information Windows 10 Education 22H2

dbuechel commented 2 months ago

I can't quite reproduce the issue; what institution would I need to select in order to reach that page, or is it the institution selection itself which does not load?

There is one entry in the browser log which could indicate a network or server issue:

[0426/083545.771:INFO:CONSOLE(1)] "Uncaught Error: Window did not load after 5000ms", source: https://ds.fidus.skolverket.se/vendors~cta~ds~index_d1d4484af119508118b5.js (1)

EnKoppTe2 commented 2 months ago

Hi. I just came back from a couple of days of work since I made this post. I found the issue earlier today. In one of the logs it says it doesn't have permission to download a font due to restrictions.

It seems that Skolverket (swedish school org) have made a test with a hardcoded font from Adobe that it tries to download through a javascript. According to our IT Admin we have a restriction policy in Intune that blocks javascript to download anything. When we disabled that policy it works fine.

You can close this issue :) Thanks!

dbuechel commented 2 months ago

Excellent, that is great to know and thank you as well for the update.