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.
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...