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[cross domain] four approachs to cross domain in javascript

four approachs can cross domain in javascript

1.jsonp

2.document.domain(only in frame and they have one same parent domain)

3.window.name

4.window.postMessage(only in Html5)

original website:http://www.cnblogs.com/2050/p/3191744.html

[cross domain] four approachs to cross domain in javascript