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Is there a way to find the memory location where the HTML for the currently-displayed screen may be accessed? I would like to follow data which are being displayed and updated live, and would like to avoid the overhead of submitting repetitive get() requests to the server. More detail: I want to monitor the HTML, probably with Perl, and construct a data stream by noting when any element's value has changed and updating the stream with the new data. This needs to be done without human intervention -- the Perl script will simply watch and generate the output stream.

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You can use Chrome's Inspect Element which tracks network request, including Headers for both request and response. You can also see the body of both and see cookies information...

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