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VisualizaçõesJS: select class inside of <iframe>
I have an <iframe> on my page.
Inside of the page, that is loaded in the iframe, is this: <span class="test">TEST</span>
I would like to change the color of TEST to red.
This is what I wrote:
var test = document.querySelector("iframe").contentWindow.document.querySelector(".test");
test.style.color = "red";
Seems logical, but it doesn't work. – What's going on?
This is the error message that I'm getting:
1 Respostas
Responde à pergunta0
I have tried this and it seems to work for me. Perhaps its some other issue?
Things to keep in mind:
You cant modify a page from a domain that isnt your own (so if the code is running on localhost, you can only modify other loaded files on localhost) This is a CORS issue
You need to wait for the IFrame to load the document before modifying it.
Other than that I took a look at your code, and the code on the link below and I tested using querySelector in an iframe and it seemed to work.
Take a look at this if you need more help: https://developer.mozilla.org/en-US/docs/Web/API/HTMLIFrameElement/contentWindow