[Bug] Blank page resulting from JS errors on reload after version upgrade

[gsreynolds]

Occasionally, after deployments of PD Live are upgraded to new versions when users reload their console it is observed that a blank page is rendered and JS errors occur, similar to below. It requires clearing of the local cache/storage and reloading the page to restore functionality.

The cause is currently unknown as to why changes in the Redux store result in this and requires investigation.

pd-live-react/src/config/incident-table-columns.js

Line 651 in 15d1edb

columns.forEach((col) => {

[gsreynolds]

Can be reproduced by loading an earlier version of the app, then running latest.

Can also be reproduced on the latest versions by editing the local storage of Redux state persist:root nested JSON for incidentTable to rename the nested key incidentTableColumnsNames to something else. Previous versions of the app used incidentTableColumns and when later versions which expect incidentTableColumnsNames are run with local state missing that key, the error occurs.