Turn It In: Troubleshooting “Invalid or Missing State” Error in Turnitin

This error occurs when browser security settings block Turnitin. To fix it:

Check Browser Compatibility:

• Run a browser compatibility check to ensure your browser is supported.
• Enable “third-party cookies” (see instructions below).
• Allow “pop-up windows”.
• If using Firefox, disable “Enhance Tracking Protection”.
• Update your browser to the latest version.

Quick Fix:

• Look for an “Eye” icon with a crossover in your browser’s address bar. Click it and allow third-party cookies.

If you still have problems try the following:

• Switch to a different browser (e.g., Chrome if Firefox isn’t working).
• Use a different computer or device.

Enable Third-Party Cookies:

Google Chrome

• On Windows – Click on the Chrome menu and select Settings
  1. (On Mac – Click on Chrome > Preferences)
• Click on Privacy and security
• Click on Cookies and other site data
• Here, ensure that the Block third-party cookies option is unchecked
• Close or refresh your browser.

Mozilla Firefox

• On Windows – Click on the Tools menu and select Options
  1. (On Mac – Click on Firefox > Preferences)
• Click on Privacy & Security
• It is recommended to select the Standard option for Enhanced Tracking Protection
• If you use Custom, ensure that you do not enable any of the options that may or will cause websites to break under Cookies
• Close or refresh your browser.

Get Support:

• If the issue persists, contact ServiceLine