How to Fix the \'Converting circular structure to JSON\' Error in Chrome Extension `sendRequest`?

Resolving the JSON.stringify Error in Chrome Extension's sendRequest

When using the chrome.extension.sendRequest method, sometimes the following error can occur:

Uncaught TypeError: Converting circular structure to JSON

This error indicates that the object passed in the request contains circular references, which prevent JSON.stringify from converting the structure correctly.

In your specific case, you're encountering this error because one of the objects in the pagedoc variable contains a circular reference. This could be caused by DOM nodes, which have circular references due to their ownerDocument property.

To resolve this issue, you'll need to identify the object with the circular reference and restructure it to remove the circularity.

Note: JSON.stringify cannot convert circular references, including those found in DOM nodes. Even if a DOM node is not attached to the DOM tree, it still has circular references due to its ownerDocument property and other DOM relationships.

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