I'm receiving this error when using this component, ``` Uncaught DOMException: Failed to read the 'contentDocument' property from 'HTMLIFrameElement': Blocked a frame with origin "https://myapp.herokuapp.com" from accessing a cross-origin frame. ``` I have tried setting `setOrigin` to `false` and also an array of URLs and still get this error when building. Is this a bug or is it because I'm on different domains for the React app and iframe src? Thanks!