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ahetman February 2016

Requesting HTML page with JavaScript (Angular app)

Python has a module called httplib which allows for the retrieval of an html resource from a URL. With this code:

httpServ = httplib.HTTPConnection("www.google.com")

I am trying to do the same thing in my angular app, but using $http get doesn't allow me to retrieve the html document due to the same origin policy.

Is there anything similar to the python method available in JavaScript?


Matthew Herbst February 2016

So, the Same-Origin Policy has nothing to do with JavaScript. It basically says "don't allow scripts on a page to talk to scripts being run by another host."

This is an extremely important security feature. It means that if you put jQuery on your page, and somehow a jQuery CDN got hacked and they changed jQuery to send your passwords to another page, it wouldn't work (so long as the browser properly enforces the Same-Origin Policy).

You don't have this problem when working with Python because Python exclusively runs on the server (from a web-app perspective). Your server can talk to any machine it wants to, but browsers do not (and should not as seen above) give that freedom to webpages.

So, how to solve your problem? Make your GET request to a script running on your server. Have your server do a curl or wget or w/e of google.com, then have your server send the data back to the client.

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Asked in February 2016
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