Whoever did the last site update/release, forgot to build resources properly. Now chunks of JS are not being loaded, since they are missing from the web server, which causes browsers to hang. ChunkLoadError: Loading chunk 779 failed. (error: https://js-agent.newrelic.com/779.215647de-1223.js) Uncaught (in promise) ChunkLoadError: Loading chunk 692 failed. (error: https://js-agent.newrelic.com/692.215647de-1223.js)