No 'Access-Control-Allow-Origin' error while embeding youtube video
问题 here is my embed code: <iframe src="https://www.youtube-nocookie.com/embed/x9pRNcoP1EU" frameborder="0" allowfullscreen></iframe> here is the error in console Access to XMLHttpRequest at 'https://googleads.g.doubleclick.net/pagead/id' from origin 'https://www.youtube-nocookie.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. I tried to add the following at the top of php page - without success header("Access-Control-Allow