phantomjs：如何使用object.assign函数运行脚本？

Question

I try to run phantomjs script for website that inculde js with Object.assign function and get an error:

TypeError:: undefined is not a function (evaluating 'Object.assign') .

As i understand, phantomjs doesn't use ES-2015. So i need to use polyfill like this . I tried to make it work with injectJs, includeJs or even require with absolute url, but it still doesn't work.

How to import this js and run script?

Answer 1

The problem could be that the webpage running Object.assign in a child frame. If so, you have to use a polyfill in that frame. You can use the following PhantomJS expression to print frame names on the page:

console.log('Current frames: ' + JSON.stringify(page.childFramesName()));

If so, you could inject polyfill in every frame:

page.injectJs('polyfills.js');

page.childFramesName().forEach(function(childFrameName) {
    page.switchToFrame(childFrameName);

    page.injectJs('polyfills.js');

    page.switchToMainFrame();
});