6603 - [HOTFIX] - API error handling

[mfacar]

fixes #6603 fixes #6263

PR checklist:

• [ ] Update READ.me ?
• [ ] Update API documentation ?

QA checklist:

• [ ] Smoke test the functionality described in the issue
• [ ] Test for side effects
• [ ] UI responsiveness
• [ ] Cross browser testing
• [ ] Code review

[Zasa-san]

LGTM

[sentry-io[bot]]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ TypeError: The "regexp" argument must be an instance of RegExp. Received type number (0) GET /favicon.ic:0/^\/(?!api(\/|$)).*$/ View Issue
• ‼️ Client Error: Request failed with status code 404: entity(app/shared/JSONRequest) View Issue
• ‼️ TypeError: Cannot read properties of undefined (reading 'some') MessagePortImpl.postMessage(/home/gary/bwjsdom/... View Issue

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