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Video streaming through Ajax calls

These days I have seen couple of sites (including Youtube) that stream videos through Ajax calls (XHR) in few MBs or even less than MB. For an example of what I said see the highlighted lines in the ...
22
votes
5answers
8k views

How do web servers enforce the same-origin policy?

I'm diving deeper into developing RESTful APIs and have so far worked with a few different frameworks to achieve this. Of course I've run into the same-origin policy, and now I'm wondering how web ...
9
votes
1answer
1k views

Who first created or popularized the original XMLHTTPRequest / MSXML?

I'm trying to understand the origins of AJAX, and think MSXML and XMLHTTPRequest were the objects that started it all. Which came first, and/or became the defacto way to create dynamic pages?
2
votes
2answers
3k views

Should we (still) consider a synced XMLHTTPRequest bad practice?

As you may know, XMLHTTPRequest can be used synchronously or asynchronously, but synchronized requests have always been considered bad practice, and I've always agreed with that. Not only is the ...