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144

Uncaught DOMException: Failed to execute 'postMessage' on 'Window': An object could not be cloned

rated 0 times [ 151] [ 7] / answers: 1 / hits: 131778 / 7 Years ago, tue, february 21, 2017, 12:00:00

I'm trying to call

parent.postMessage(obj, 'whatever');

from within an iframe and I'm getting this error: Uncaught DOMException: Failed to execute 'postMessage' on 'Window': An object could not be cloned.

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answered 7 Years ago julieth · Accepted Answer

It turns out the object I passed had methods, which is why the error message said An object could not be cloned.

In order to fix this, you can do the following:

obj = JSON.parse(JSON.stringify(obj));

parent.postMessage(obj, 'whatever');