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I got an issue and really need help from you.

I have a page that call main_page, main_page contain a textbox name textbox_A and an iframe this iframe link to embedded_page. The embedded_page contains a input textbox called textbox_B and button "send". The main_page and embedded_page are 2 different domain.

My issue is:

When user input to textbox_B and click button "send", how can I show inputed text from textbox_B into textbox_A without reload the main_page?

I also research about the postMessage method, but it does not work. I dont know if it because Same Origin Policy ???

Are there any one can help me out with this, Many thanks, Kelly

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