javascript - Same origin confusion -


i confused , not possible given same origin policy. example, how a client-side rss reader able grab rss feed , display can't make ajax request? also, how can saas zendesk offer simple code snippet allows uses load popover div form ajax-like functionality?

a client-side rss reader (i assume mean google reader) not use javascript fetch rss feed. uses php or other server side language, can code other places outside of origin. zendesk uses jsonp or that. if trying make cross domain ajax calls, should cors, allows if control servers @ both ends. really, should these things before posting them on stackoverflow in future.


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