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by pak 5472 days ago
With all the headless Webkit tools coming out nowadays (and all the free and fast JS engines like V8), writing a spider that runs a JS engine and clicks on all kinds of non-<a> elements is not beyond the reach of somebody innovative and motivated enough to create new kinds of spidering robots.

You won't need to write a complete JavaScript library. Look at all the testing suites that automate browser instances, Selenium being the most well-known.