When page is opened with window.open, how can the opened page allow the opener to access its contents?
问题 Is it possible for a page opened with window.open to allow itself to be examined by a cross-origin opener? (This is for use in internal applications, so security is not a significant concern.) And if so, how? I've tried replacing all of the CORS and Same-Origin policies I can find and I still get Access Denied on all properties for a child window. In particular I am trying to use Internet Explorer 11 Headers These are all of the headers I've tried so far Access-Control-Allow-Origin: http:/