Learning the postMessage vulnerability (part -1)

I gonna learn for next 3 weeks to how to find and exploit vulnerability and make some cool money

Reads those concept in javascript and dig deeper

Note : Write small programs on each case in the checklist

Note : Like this … create the module in html and make the javascript content render into html page

Example pratice code for object's in javascript :

Most important tip's :

Note : don't write code like this :

Note : write a code like this and pratice :

which is minfied code in javascript and do a research about minified javascript

let's see on part -2