Strange behaviour when extract url from Google Search Result Page with Javascript
Zephyr
Today I'm interested to try the following interesting piece of Javascript in Chrome:-
Array.from(document.getElementsByClassName('r')).forEach(x => console.log(x.firstChild.href))
As expected, this list out all the target url (without Google tracking) in my console. However when I try to inspect the href of the anchor, it turns out that the href is actually the Google tracking url and the target url (without Google tracking) is in the data-href instead.
I expect the value of href should be the target url (without Google tracking). May I know what's the cause of this discrepancy?
Zephyr
In fact, I noticed that the anchor inside the Google Search Result Page will trigger an event on mouse click which will change the orignal value of href and embed it in data-href instead.
That means as long as the anchor doesn't get clicked, the original url of the value of the href will be preserved.
My current knowledge doesn't allow me to drill down further and any more detailed or technical explanations are welcome! =)
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