construct a DOM tree from a string without loading resources (specifically images)

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梦如初夏
梦如初夏 2020-12-20 17:51

So I am grabbing RSS feeds via AJAX. After processing them, I have a html string that I want to manipulate using various jQuery functionality. In order to do this, I need a

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  •  不知归路
    2020-12-20 18:25

    The obvious answer is to parse the string and remove the src attributes from img tags (and similar for other external resources you don't want to load). But you'll have already thought of that and I'm sure you're looking for something less troublesome. I'm also assuming you've already tried removing the src attribute after having jquery parse the string but before appending it to the document, and found that the images are still being requested.

    I'm not coming up with anything else, but you may not need to do full parsing; this replacement should do it in Firefox with some caveats:

    thestring = thestring.replace("

    The caveats:

    • This appears to work in the current Firefox. That doesn't meant that subsequent versions won't choose to handle duplicated src attributes differently.
    • This assumes the literal string "general purpose assumption, that string could appear in an attribute value on a sufficiently...interesting...page, especially in an inline onclick handler like this: (Although in that example, the false positive replacement is harmless.)

    This is obviously a hack, but in a limited environment with reasonably well-known data...

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