What’s the the X-FRAME-OPTIONS header?

The X-FRAME-OPTIONS header is being sent with responses from webservers to your browser. It tells the browser whether it should display the content of a website in an iframe tag (an element that allows websites to be embedded in other documents).

For a website to be used with NativeGap, the X-FRAME-OPTIONS header has to have the value of allowall. This is to make sure that you have control over the apps you publish.