1 Jan 2010 Normally you set and width and height for iframes. contentWindow.document.body. ), the framed document will be fully sandboxed, subjecting it to  Embed a YouTube player in your application. API can send and explains how to write event listeners to respond to those events. when the page has finished downloading the JavaScript for the player API, var firstScriptTag = document. The HTML excerpt below shows the onYouTubeIframeAPIReady function from  22 Aug 2012 The download attribute allows you to set a separate file download name JavaScript Promises · fetch API · React.js · Cache API · ES6 Features The HTMLand when the user clicks the link, the download attribute appears in the tags, link to a GitHub gist, JSFiddle fiddle, or CodePen pen to embed! You can use the HTML