How to check for JavaScript errors on your site

Checking for JavaScript errors on your site can alert you to any issue with a JavaScript optimization, and help you troubleshoot problems. You can check for these errors using a tool built in to your browser. 

If the error you find is jQuery is not defined, please see this guide to resolve it.

If you are contacting our support team due to a related error, please take a screenshot of the error details so that we may better assist you. 

Chrome

  • Right-click anywhere on the page. Choose Inspect. 
  • The developer panel will open. Click on the Console tab.
  • Alternatively, at the top of the screen, go to View > Developer > JavaScript Console
  • In the left panel, click on Errors
  • If there are any, you will see them in red. You will also see a red indicator at the top right side of the panel:

Firefox

  • Right-click anywhere on the page. Choose Inspect Element. 
  • The developer panel will open. Click on the Console tab.
  • Alternatively, at the top of the screen, go to Tools > Web Developer > Web Console
  • Make sure Errors is selected. 
  • If there are any, you will see them in red:

Safari

  • Go to Safari > Preferences > Advanced and enable  Show Develop menu in menu bar:
  • Right-click anywhere on the page and choose Inspect Element
  • The developer panel will open - click on the Console tab.
  • Alternatively, at the top of the screen go to Develop > Show JavaScript Console
  • Errors will be displayed at the bottom of the panel

Internet Explorer

  • Right-click anywhere on the page. Choose Inspect Element. 
  • The developer panel will open in a new window. Click on the Console tab.
  • Refresh the website page for the errors to be logged.
  • Alternatively, at the top right corner of the screen, go to Tools > F12 Developer Tools.
  • Make sure Errors is selected. 
  • If there are any, you will see them in red:

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