![]() ![]() It means that this is a great solution when one (child) application in one window must be embedded in iframe tag of parent app (window) and when both apps must exchange data between each other! Then both, child and parent window emit postMessage event to send needed data. Key here is “cross-origin” communication – it means that we can communicate by window.postMessage with pages (websites, webapps, micro-front-end apps) hosted in another server. communication between many micro-front-ends apps (running inside many iframe windows) and its parent (hosting) app.another webpage (child) is opened in iframe window embedded in parent webpage window.new webpage (child) is opened in new tab window from parent webpage window.new webpage (child) is opened in new window (popup) from parent webpage window.Situations when to use postMessage for sending data in details: You should use it when you want to send data back and forth between two web pages or webapps running under different locations (urls) when one window (page) is located inside another page or is opened from it. JavaScript window postMessage method makes possible cross-origin communication between windows. Native means that will work directly under browser without any other tool between your code and website (like babel for transpilation) and it makes easy communication between two or more front-ends (apps, webpages etc) layers running under separated windows which are related to each other (parent-child relation) When should I use in JavaScript Windows postMessage? Window.postMessage is the native JavaScript method. Let’s have a closer look at both of them. In all above cases the main question is – how parent page communicates with child page in IFRAME html tag? You may wonder if an iframe or new tab window can communicate with its parent window? Of course, yes, it is! And I will show in this article how to do that in a correct way □ Of course with JavaScript □įor bidirectional communication we will use two native JavaScript functionalities: How do iframe and parent site communicate? ![]() React, Vue or Angular iframe postMessage communication.Fully advanced example of JavaScript postMessage.Advanced example of JavaScript postMessage.Generic example of JavaScript postMessage.When should I use in JavaScript Windows postMessage?.How do iframe and parent site communicate?. ![]()
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