achieve.macmillanlearning.com: breakage

Prerequisites

[X] This is NOT a YouTube, Facebook, Twitch or a shortener/hosting site report. These sites MUST be reported by clicking their respective links.
[X] I read and understand the policy about what is a valid filter issue.
[X] I verified that this issue is not a duplicate. (Use this button to find out.)
[X] I did not remove any of the default filter lists, or I have verified that the issue was not caused by removing any of the default lists.
[X] I did not enable additional filter lists, or I have verified that the issue still occurs without enabling additional filter lists.
[X] I do not have custom filters/rules, or I have verified that the issue still occurs without custom filters/rules.
[X] I am not using uBlock Origin along with other content blockers.
[X] I have verified that the web browser's built-in content blocker/tracking protection, network wide/DNS blocking, or my VPN is not causing the issue.
[X] I have verified that other extensions are not causing the issue.
[X] If this is about a breakage or detection, I have verified that it is caused by uBlock Origin and isn't a site issue.
[ ] I did not answer truthfully to ALL the above checkboxes.

URL address of the web page

https://achieve.macmillanlearning.com/

Description

There are buttons that open little popups that show extra information, it's supposed to just open a side tab but now it just causes the entire page to go white.

Expected:

Actual:

other

I'm not sure how to verify if it's with the site, it used to work fine but now it does not.

Other extensions used

Bitwarden

Screenshot(s)

Configuration

```yaml uBlock Origin: 1.56.0 Firefox: 116 filterset (summary): network: 145900 cosmetic: 47201 scriptlet: 20409 html: 1723 listset (total-discarded, last-updated): default: user-filters: 15-0, never ublock-filters: 37533-265, 16m ublock-badware: 7991-15, 16m ublock-privacy: 776-0, 16m ublock-unbreak: 2304-1, 16m ublock-quick-fixes: 251-0, 16m easylist: 84059-667, 16m adguard-spyware-url: 1488-106, 16m easyprivacy: 50409-844, 16m urlhaus-1: 8965-0, 16m curben-phishing: 14143-2, 16m plowe-0: 3763-0, 16m LegitimateURLShortener: 2623-167, 16m bpc-paywall-filter: 1054-0, 16m AntiPaywall: 2092-15, 16m filterset (user): [array of 15 redacted] trustedset: added: [array of 4 redacted] removed: about-scheme switchRuleset: added: [array of 1 redacted] userSettings: advancedUserEnabled: true hiddenSettings: [none] supportStats: allReadyAfter: 336 ms (selfie) maxAssetCacheWait: 139 ms cacheBackend: indexedDB popupPanel: blocked: 6 no-cosmetic-filtering: true network: googletagmanager.com: 1 instana.io: 2 pendo.io: 2 usercentrics.eu: 1 ```

default:
  user-filters: 15-0, never
  ublock-filters: 37533-265, 16m
  ublock-badware: 7991-15, 16m
  ublock-privacy: 776-0, 16m
  ublock-unbreak: 2304-1, 16m
  ublock-quick-fixes: 251-0, 16m
  easylist: 84059-667, 16m
  adguard-spyware-url: 1488-106, 16m
  easyprivacy: 50409-844, 16m
  urlhaus-1: 8965-0, 16m
  curben-phishing: 14143-2, 16m
  plowe-0: 3763-0, 16m
  LegitimateURLShortener: 2623-167, 16m
  bpc-paywall-filter: 1054-0, 16m
  AntiPaywall: 2092-15, 16m
filterset (user): [array of 15 redacted]

You are using a custom default configurations of uBO. Test again in official Firefox browser with only uBO and its default settings.

Then can you test these filters?

@@||cdn.pendo.io/agent/static/*/pendo.js$script,domain=achieve.macmillanlearning.com
@@||data.pendo.io/data/guide.js/$script,domain=achieve.macmillanlearning.com

Click on uBO icon > ⚙ Dashboard button > Add the filter(s) in "My filters" pane > ✓ Apply changes > Open new tab and test again.

uBlockOrigin / uAssets