window.find not working in iframe on webpage

Question

I wrote a JavaScript code to find text on window using window.find . It works fine for the web pages but does not work inside IFRAME text ( i have to search the text on web page and IFRAME also). The purpose is to highlight searched text in blue background just like browsers search does.

Can anybody put me in the right direction what mistake I am making Below is my code

function searchText(str)
{
     window.find(str)
}

Answer 1

You can only access the contents of an iframe with JS if the content is from the same domain.

If it is -> $("#iFrame").contents().find()