hoangvu12 – 06-57 Jul 17

Hi, I'm developing a chrome extension for a web page, I want two way communication between webapp and content-scripts, how can I do that? Currently I'm able to communicate from

webapp

webapp

content-script

content-script

using

window.postMessage

window.postMessage

in webapp and

window.addEventListener('message', callback);

window.addEventListener('message', callback);

content-script

content-script

, but I have no idea how to do send message from

content-script

content-script

webapp

webapp

. Thank you

hoangvu12 – 06-57 Jul 17

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