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    <blockquote> <p>Is there a need to use HTTPS instead of HTTP since I'm only using HTTP for sending script to the client? (Note: I'm planning to use Local Storage instead of cookies)</p> </blockquote> <p>No, HTTP/HTTPS is required for handshake for websockets. Choice of HTTP or HTTPS is from security point of view. If you want to use it for simply sending script then there is no harm. If you want to implement user login / authentication in your pages then HTTPS should be used.</p> <blockquote> <p>Are the any downfalls in using pure Web Sockets without HTTP?</p> </blockquote> <p>Web sockets and HTTP are very different. If you use pure Web Sockets you will miss out on HTTP. HTTP is the preferred choice for cross-platform web services. It is good for document traversal/retrieval, but it is one way. Web socket provides full-duplex communications channels over a single TCP connection and allows us to get rid of the workarounds and hacks like Ajax, Reverse Ajax, Comet etc. Important thing to note is that both can coexist. So aim for web sockets without leaving out HTTP.</p> <blockquote> <p>If it works, why nobody's using that?</p> </blockquote> <p>We live in the age of HTTP, web sockets are relatively new. In the long term, web sockets will gain popularity and take up larger share of web services. Many browsers until recently did not support web sockets properly. See <a href="http://caniuse.com/websockets" rel="nofollow">here</a>, IE 10 is the latest and only version in IE to support web sockets. nginx, a wildly popular server did not support web sockets until Feb-March 2013. It will take time for web sockets to become mainstream but it will.</p>
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    1. POIs it a good practice to use Socket.IO's emit() instead of all HTTP requests?
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    1. POIs it a good practice to use Socket.IO's emit() instead of all HTTP requests?
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    1. COThank you for response, very comprehensive. Cross-platform argument determined my solution, but I agree with you that future belongs to web sockets.
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