Sounds like you're trolling web sites. When you do that - you get whatever content is on the site including scripts.
Modern web sites basically are useless without JS - so I don't see how you can excise the JS and still have functional content unless you're trying to get textual/graphic content for fun and profit....
Without knowing what is the object of this exercise - I would highly recommend loading the content and it's scripts on a test server on a network segment without connectivity to the rest of your network. Then you can fool around to your heart's content.
Hope this helps.