Fix checkRoute() in UserNav (or related components)
Sentry Issue: FRONTEND-1R
TypeError: Cannot read property '1' of undefined
at o.checkRoute (/js/app.a4019420.js:1:408189)
at o.<anonymous> (/js/app.a4019420.js:1:407632)
at N (/js/vendor.fc32f850.js:146:115519)
at Generator._invoke (/js/vendor.fc32f850.js:146:116643)
at Generator.e.<computed> [as next] (/js/vendor.fc32f850.js:146:115698)
...
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