How to set the user agent string in the phantom module?

node.js, phantomjs

Solution

According to the Functional Details in the docs, you have to set the user agent through `page.set()`:

page.set('settings.userAgent', 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.71 Safari/537.36');

It has to be done this way, because the bridge has to communicate with the PhantomJS process and isn't doing this in a non-asynchronous fashion. This could've probably been implemented with `Object.defineProperty`.

If you want to set multiple settings at once, you can do (ref):

page.set('settings', {
    userAgent: "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_7_5) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.97 Safari/537.11",
    javascriptEnabled: false,
    loadImages: false
});

You can find a list of settings that you can set in `page.settings`.

Problem

``` var phantom = require('phantom'); console.dir(phantom); phantom.create(function(browser){ browser.createPage(function(page){ page.customHeaders={ "HTTP_USER_AGENT": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.71 Safari/537.36", }; console.dir(page.settings); //undefined page.settings={}; page.settings.userAgent = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.71 Safari/537.36'; page.settings.HTTP_USER_AGENT = 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/28.0.1500.71 Safari/537.36'; console.dir(page.settings); page.open('http://example.com/req.php', function() { setTimeout(function() { var output = page.evaluate(function() { return document; }); console.dir(output); //undefined }, 1000); });});}); ``` when I use phantomjs I try and set the header for userAgent using three different ways but when I visit the page and save the PHP $_SERVER object to a txt pad I still see PhantomJS ``` HTTP_USER_AGENT: Mozilla/5.0 (Unknown; Linux x86_64) AppleWebKit/538.1 (KHTML, like Gecko) PhantomJS/2.0.1-development Safari/538.1 ``` not only that but the output of the page is also undefined. It seems that the docs have changed or I cant find the correct ones. I am looking at http://phantomjs.org/api/webpage/property/settings.html https://www.npmjs.com/package/phantom How is this used correctly?

Original source