If you encounter an error message such as “Unexpected token 'u', 'upstream c'... is not valid JSON” or “Unexpected application error!”, it’s typically caused by a temporary issue with your browser session or cached data.
Common scenarios where this may appear
This error can occur when viewing or managing job postings, applicants, or interview schedules in Handshake.
How to resolve the error
Use a supported browser
Handshake works best in the latest versions of Google Chrome or Mozilla Firefox. Other browsers, such as Internet Explorer, are not supported and may cause errors.Clear your browser cache
If you’re already using a supported browser, clear your cache and cookies, then log back into Handshake.Try an incognito or private browsing window
Open Handshake in a Chrome incognito or Firefox private window. This can help identify whether the issue is related to your browser session or an extension.Log out and back in or refresh the page
If the error persists, logging out and back in or refreshing the page may resolve the issue.
For information on browser compatibility, refer to Handshake Supported Browsers (for Employers).