nl_tokens: Use MockHttpRequest in demos
pl_tokens: function mockXhrGenerator ( file ) { var xhr = new MockHttpRequest ( ) ; xhr . upload = { } ; xhr . onsend = function ( ) { if ( xhr . upload . onloadstart ) { xhr . upload . onloadstart ( ) ; } var total = file && file . size || 1024 , done = 0 ; function start ( ) { setTimeout ( progress , 1000 ) ; } function progress ( ) { xhr . upload . onprogress ( { total : total , loaded : done } ) ; if ( done < total ) { setTimeout ( progress , 200 ) ; done = Math . min ( total , <mask> + 254000 ) ; } else if ( ! file . abort ) { setTimeout ( finish , 1000 ) ; } } function finish ( ) { xhr . receive ( 200 , '{"message":"OK"}' ) ; } start ( ) ; } ; return xhr ; }