cannot require plotly.js file

[slfan2013]

The following code does not work.

p = new Parallel([0,1,2], {maxWorkers:6,env: {
      keysMap:"test"
      },evalPath: 'js/eval.js' });
p.require("https://cdn.plot.ly/plotly-latest.min.js")

        p.map( function (ind) {
return(0)
        }).then(function(result){console.log(result)})

Something wrong with the code of p.require("https://cdn.plot.ly/plotly-latest.min.js"). If I change the url to something else, it works. For example,

p = new Parallel([0,1,2], {maxWorkers:6,env: {
      keysMap:"test"
      },evalPath: 'js/eval.js' });
p.require("https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js")

        p.map( function (ind) {
return(0)
        }).then(function(result){console.log(result)})

Is it because the size of plotly-latest.min.js is too big for parallel.js?