javascript - Do I need insert a pixel tracking on the DOM?

Question

I have the following code:

[..]
var img = document.createElement('img');
img.src = 'www.example.com/pixeltracking';
[.. more stuff..]

that works well in Chrome but in Firefox I've never saw finish the request.

When I add the image to the DOM, now Firefox finish the load but chrome stop the code execution without any error message.

[..]
var img = document.createElement('img');
img.src = 'www.example.com/pixeltracking';
document.body.appendChild(img);
[.. more stuff..]

Any idea? Thanks

Answer 1

您的代码的问题是您忘记http://了网址。现在您正尝试加载www.example.com/pixeltracking 相对于当前 URL 的内容，例如http://yourdomain.com/foobar/www.example.com/pixeltracking.