在Phantom JS

Question

请考虑以下代码：

var steps = [];
var testindex = 0;
var testError = 0;
var loadInProgress = false; 
var webPage = require('webpage');
var page = webPage.create();
page.settings.userAgent = 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/44.0.2403.157 Safari/537.36';
page.settings.javascriptEnabled = true;
page.settings.loadImages = false; 
phantom.cookiesEnabled = true;
phantom.javascriptEnabled = true;

steps = [

    //Step 1 - Open  site
    function() {

        console.log('Step 1 - Open UK site');
        page.open("http://www.example.com/", function(status) {
            if (status !== 'success') {
                console.log("Adidas UK is loading for long");
            }

        });

    },
function() {
        console.log('Step 2 - Search for the product');
        page.evaluate(function(login, password) {
            bla bla bla ...
        });

    },  
function() {
        bla bla ...

    },  
many more functions ...

//Execute steps one by one
interval = setInterval(executeRequestsStepByStep, 50);

function executeRequestsStepByStep() {
    if (loadInProgress == false && typeof steps[testindex] == "function") {
        //console.log("step " + (testindex + 1));
        steps[testindex]();
        testindex++;
    }
    if (typeof steps[testindex] != "function") {
        console.log("Script is completed...");
        phantom.exit();
    }
}

page.onError = function(msg, trace) {

    var msgStack = ['ERROR: ' + msg];

    if (trace && trace.length) {
        msgStack.push('TRACE:');
        trace.forEach(function(t) {
            msgStack.push(' -> ' + t.file + ': ' + t.line + (t.function ? ' (in function "' + t.function+'")' : ''));
        });
    }
    console.error(msgStack.join('\n'));
    phantom.exit(2); //this is needed in case any error related to phantom script occurs.

};

在上面的代码示例中，当我执行脚本时，我在步骤1和步骤5中得到类似这样的错误，这是由于某个时间点页面上的一些javascript代码执行造成的。

ERROR: TypeError: undefined is not a constructor (evaluating 'sf_chat_Widget.loc
ale.includes("CH")')
TRACE:
 -> https://e-com.secure.force.com/adidasContact/servlet/servlet.FileDownload?fi
le=01520000003gdry: 58 (in function "loadWidget")
 -> http://www.adidas.co.uk/: 3367 (in function "onload")

  phantomjs://code/UkScript.js:158 in onError

我希望忽略或跳过此错误而不停止脚本中的步骤执行，并且只捕获由未发生的幻像JS脚本引起的错误，并且在页面上发生所有错误。

  

是否已经有办法跳过或忽略特定的页面错误和   只是捕捉幻影js脚本中发生的错误？

P.S。我是Stackoverflow的新手，在提问时如果你发现任何不相关的内容或者之前已经被问过，请不要犹豫。 非常感谢您的帮助！