Greasy Fork镜像

It would show the keep unread button, but once clicked the button. There's an error message: "Uncaught TypeError: Cannot read properties of undefined (reading 'toLowerCase') ".

The "Uncaught TypeError: Cannot read properties of undefined (reading 'toLowerCase')" error when clicking a "keep unread" button indicates that the code is trying to use toLowerCase() on a value that is currently undefined. This could be due to missing data, incorrect variable names, asynchronous operations where data hasn't loaded yet, a logic error in the JavaScript, or issues within a front-end framework. To troubleshoot, use the browser's developer tools (Console and Sources tabs) to identify the exact line causing the error, inspect the involved variables and data, and consider potential issues with asynchronous operations or event handling. Providing the relevant code and data structure details would allow for more specific assistance.

Many thanks!! The script works great, after I cleared cookies and restart browser. Have a nice day and everything goes your way.