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2025-09-23 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Internet Technology >
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This article mainly explains "how to use h5 postMessage method iframe cross-domain message delivery problem", the content of the article is simple and clear, easy to learn and understand, now please follow the editor's train of thought slowly in depth, together to study and learn "how to use h5 postMessage method iframe cross-domain message delivery problem" bar!
Page 1 localhost:8086/index.html copy code
Frame Color
Window. "nl" ad=function () {
Window.frames [0] .postMessage ('getcolor',' http://localhost:8087');
}
Window.addEventListener ('message',function (e) {
Var color=e.data
Document.getElementById ('color'). Style.backgroundColor=color
}, false)
Page 2 localhost:8087/index.html
Click to change color
Var container=document.getElementById ('container')
Window.addEventListener ('message',function (e) {
If (e.sourceworthy windows. Parent) return
Var color=container.style.backgroundColor
Window.parent.postMessage (color,'*')
}, false)
Function changeColor () {
Var color=container.style.backgroundColor
If (color=='rgb (204,102,0)') {
Color='rgb (204,204,0)'
} else {
Color='rgb (204, 102, 0)'
}
Container.style.backgroundColor=color
Window.parent.postMessage (color,'*')
}
Click the iframe page in the browser to browse localhost:8086/index.html to change the color of the parent class.
That's it, easy.
Thank you for your reading, the above is the content of "how to use h5 postMessage method iframe cross-domain message delivery problem". After the study of this article, I believe you have a deeper understanding of how to use h5 postMessage method iframe cross-domain message delivery problem, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!
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