How to Handle Chrome\'s `sendRequest` Error: Circular Structures in JSON Conversion?

Chrome sendRequest Error: Handling Circular Structures in JSON Conversion

When sending requests using chrome.extension.sendRequest, it's crucial to ensure that the provided request object doesn't contain circular references within its properties. This error arises when attempting to serialize such objects into JSON.

One common source of circular references is DOM nodes, which possess a bidirectional relationship with their parent and owner documents. As a result, attempting to serialize a DOM node into JSON can trigger this error.

To resolve this issue, you need to identify and remove any circular references in your request object. This can be achieved by doing the following:

• If you're dealing with DOM nodes, consider creating a stripped-down version of the object that doesn't contain any references to the DOM tree.
• For custom objects, carefully inspect the properties and ensure that none of them point back to the root object itself.
• You can use a library like lodash to detect and remove circular references in your objects.

By eliminating circular references, you can successfully serialize your request object into JSON and send it using chrome.extension.sendRequest without encountering the aforementioned error.

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