Apple says NSURL is developed using RFC 1738 (and some others).
Now RFC 1738 only indicates that the web URL has a scheme and a specific part of the scheme.
I want to know all the schemes that NSURL understands. And since I use it with NSURLRequest and NSURLConnection (the so-called "URL loading system"), I need to know all the schemes that they understand.
Why? Because I just want to know. Apple, without going into details about this in the documentation, just say that it complies with RFC 1738. It says a lot, but also nothing.
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