Send the following on WhatsApp
Continue to ChatQuery : App.facebook.com/app_name/ - to redirect to a external url after clicking “go to app” I know there is a way to redirect the page using javascript in the iframe of the canvas application https://vmapp.org/query/90145/App-Facebook-Com-App-Name-To-Redirect-To-A-External-Url-After-Clicking-Go-To-App-I-Know-There-Is-A-Way-To-Redirect-The-Page-Using-Javascript-In-The-Iframe-Of-The-Canvas-Application/