Failed to read the 'sessionStorage' property from 'Window': Access is denied for this document.

kevintab95 commented 2 years ago

This error occurred recently in production

Error: Failed to read the 'sessionStorage' property from 'Window': Access is denied for this document.
    at u.clearSavedResults (platform-feature.service.ts:203:33)
    at u.<anonymous> (platform-feature.service.ts:175:12)
    at Generator.next (<anonymous>)
    at exploration_player.bbc071556a35876388f4.bundle.js:3159:122247
    at new e (zone.js:913:33)
    at A (exploration_player.bbc071556a35876388f4.bundle.js:3159:121992)
    at u._initialize (exploration_player.bbc071556a35876388f4.bundle.js:3159:122876)
    at u.<anonymous> (platform-feature.service.ts:91:59)

Additional context Add details from the logs, like the page the error occurred on. Make sure to anonymize user data like user IDs, exploration IDs, state names, user names, etc. Replace the personal data with appropriate placeholders.

General instructions There are no specific repro steps available for this bug report. The general procedure to fix server errors should be the following:

Analyze the code in the file where the error occurred and come up with a hypothesis for the reason.
Get the logic of the proposed fix validated by an Oppia team member (have this discussion on the issue thread).
Make a PR that fixes the issue, then close the issue on merging the PR. (If the error reoccurs in production, the issue will be reopened for further investigation.)

kevintab95 commented 2 years ago

This occured in an embedded exploration.

kevintab95 commented 2 years ago

This can happen when the browser blocks cookies and site data: https://www.chromium.org/for-testers/bug-reporting-guidelines/uncaught-securityerror-failed-to-read-the-localstorage-property-from-window-access-is-denied-for-this-document/