Error
at https://commons.wikimedia.org/w/load.php?lang=en&modules=jquery%2Cmediasearch&skin=vector&version=1in2g:229:431
at a.restorePageState https://commons.wikimedia.org/w/load.php?lang=en&modules=jquery%2Cmediasearch&skin=vector&version=1in2g:229:401
at <anonymous>:292:566
at <anonymous>:294:59
at <anonymous>:294:39
at a._withCommit <anonymous>:295:563
at a.commit <anonymous>:294:14
Cannot convert undefined or null to object
Impact
- There should not be any UI impact, apart from errors being triggered on production
Notes
The error is triggered when an user does NOT have any information stored in session storage (mw-mediasearch).