return XMLHttpRequest from load() methods that do not return anything else

[makc]

Follow-up PR to #8091 I skipped some loaders where it was not obvious to me where to stick that return statement, and also things like XxxTextureLoader that already return textures from load() call.

[mrdoob]

Hmm, that's not very readable... Do you mind changing it to this pattern?

loader.load( url, function( text ) {

    onLoad( scope.parse( text ) );

}, onProgress, onError );

return loader;

[makc]

return loader will not give you access to request

[mrdoob]

Oh, true. How about...

var request = loader.load( url, function( text ) {

    onLoad( scope.parse( text ) );

}, onProgress, onError );

return request;

[makc]

Right, now I need to figure out how to mass-replace that.

[gabrielcramer]

You may find this PR interesting. #9600
It allows you to abort all active requests using the LoadingManager.
To abort a single request we may store the current request inside every Loader.

[makc]

This branch has conflicts

too late, closing.