Why does netsniff.js print javascript errors into the output?

Question

I use the netsniff.js like this:

phantomjs --ignore-ssl-errors=true --ssl-protocol=any netsniff.js http://thermex.ru/ > t.out

When netsniff is done, I open file t.out in my text editor and I see the JS bugs like this:

TypeError: 'undefined' is not a function (evaluating   '$('.bxslider').bxSlider({
    mode: 'fade',
    preloadImages: 'all',
    slideWidth: 697
})')

http://thermex.ru/:565
http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js:2
http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js:2
http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js:2
http://ajax.googleapis.com/ajax/libs/jquery/1.8.2/jquery.min.js:2

after this errors I see valid HAR data.

But I don't can parse this file, because him contains no valid JSON data (JS errors + valid JSON HAR data = no valid JSON data).

How can I receive the valid file from netsniff.js for this domain?

Artjom B. · Accepted Answer · 2015-08-16 09:41:11Z

2

You can register to the page.onError, page.onConsoleMessage and phantom.onError events to prevent the default action (before page.open in netsniff.js):

page.onError = function(){};
page.onConsoleMessage= function(){};
phantom.onError = function(){};

answered Aug 16, 2015 at 9:41

Artjom B.

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