CasperJS/PhantomJS在加载页面时感到窒息 [英] CasperJS/PhantomJS chokes on loading a page

问题描述

我正在使用phantomjs运行以下脚本:

I'm running the following script with phantomjs:

var casper = require('casper').create();
var url = 'https://itunesconnect.apple.com/itc/static/login?view=1&path=%2FWebObjects%2FiTunesConnect.woa%3F'

casper.on("page.error", function(msg, trace) {
  this.echo("Error:    " + msg, "ERROR");
  this.echo("file:     " + trace[0].file, "WARNING");
  this.echo("line:     " + trace[0].line, "WARNING");
  this.echo("function: " + trace[0]["function"], "WARNING");
  errors.push(msg);
});



casper.start(url, function(){
    casper.wait(7000, function(){
        // casper.echo(casper.getHTML());
    })
})

casper.run(function() {
  if (errors.length > 0) {
    this.echo(errors.length + ' Javascript errors found', "WARNING");
  } else {
    this.echo(errors.length + ' Javascript errors found', "INFO");
  }
  casper.exit();
});

直到几天前，我才能访问该页面，该页面加载了一个包含2个表单字段的iframe，以允许用户登录.

Until a few days ago I could access the page which loads an iframe that contains 2 form fields, to allow user login.

现在出现以下错误:

Error:    Error: undefined is not a constructor (evaluating '$stateParams.path.startsWith('/')')

    at setupDSiFrame (https://itunesconnect.apple.com/itc/static-resources/controllers/login_cntrl.js?cache=111920151100:99:46)

    at https://itunesconnect.apple.com/itc/static-resources/controllers/login_cntrl.js?cache=111920151100:19:37

    at $digest (https://itunesconnect.apple.com/itc/js/compiled/lib/vendor.js?cache=111920151100:13:11750)

    at $apply (https://itunesconnect.apple.com/itc/js/compiled/lib/vendor.js?cache=111920151100:13:13237)

    at f (https://itunesconnect.apple.com/itc/js/compiled/lib/vendor.js?cache=111920151100:12:56414)

    at r (https://itunesconnect.apple.com/itc/js/compiled/lib/vendor.js?cache=111920151100:12:65848)

    at onreadystatechange (https://itunesconnect.apple.com/itc/js/compiled/lib/vendor.js?cache=111920151100:12:66409)

file:     https://itunesconnect.apple.com/itc/js/compiled/lib/vendor.js?cache=111920151100

line:     12

使用slimerjs作为引擎，页面可以很好地加载，但是使用slimerjs时，由于窗口不清晰，因此无法填写登录表单. 我相信这是casper使用旧版本的WebKit并在加载页面时遇到问题的问题.我该如何解决?

The page loads fine using slimerjs as the engine, but when using slimerjs the login form does not get filled in because the window is not in focus. I believe this is an issue where casper is using an old version of WebKit and chokes on loading the page. How would I fix this?

推荐答案

解决问题为时已晚，但如果有人在PhantomJS中找到搜索startsWith问题的问题，则可能对以后的参考很有用(就像我所做的那样):在ECMAScript上添加了 startsWith 方法6规范，PhantomJS不支持.

Too late to solve the problem but maybe useful for future reference if somebody finds the question searching for a problem with startsWith in PhantomJS (as I did): startsWith method was added on the ECMAScript 6 specification, which is not supported by PhantomJS.

为此的一个很好的填充是 mathiasbynens/String.prototype.startsWith

A good polyfill for this is mathiasbynens/String.prototype.startsWith

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