I must accomplish it in this way using postMessage(). I am having a lot of trouble accomplishing this. Parent.postMessage("hi from the ifr " + location. Then, I want to show an iFrame of the localhost:8000/(someid) in the localhost:3000 page. tAttribute('lws-ifr-status', 'active') Ĭonst acceptedOrigins = ['', '', ' if (e.data.indexOf('close') Ĭonst acceptedHosts = Ĭonsole.log(' APPROVED parent origin', pOrigin) Ĭonsole.log(' UNAPPROVED parent origin', pOrigin) And once using a delcared origin - which is what I need, but can't get to work.Ĭonst ifrEle = document.querySelector('') Once on page load using the wildcard - which is working. #IFRAME POSTMESSAGE HOW TO#First and foremost, let’s look at how to embed an Iframe in a React project. When looking at the history, an Inline frame called Iframe was introduced in 1997 with HTML 4.01 by Microsoft Internet Explorer. Uncaught DOMException: Blocked a frame with origin. In a Nutshell, Iframes allow you to embed content from other websites into yours. I have this working on the same origin, but when I move to a different origin, I get a standard corss-origin error. The Web Messaging protocol, also known as PostMessage, lets Office for the web frame communicate with its parent host page, and vice-versa. There are times when you want to enable communication for an IFRAME that contains content on a different domain. postMessage takes a message: Message as the argument - it is our own message kind that we selected and agreed with the Child app to pass through. (, , How can I do cross-domain postMessage?, etc.) The window.postMessage () method safely enables cross-origin communication between Window objects e.g., between a page and a pop-up that it spawned, or between a page and an iframe embedded within it. However, you are adding an event listener to the parent window (aka window ), NOT the iframe's content window. I have reviewed dozens of other similar questions, but am still stuck. When you're calling postMessage on the frame's contentWindow you are sending a message to the iFrame, as I believe you intend. To send a message first, you need to get a window reference or an iframe instance where you will post your data. I am trying to communicate with cross-origin resources using postMessage(), but am unable to get it to work properly. The postMessage () Method This method has two main parameters: message a string or object which is our data, targetOrigin the URL where we send our message.
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