MediaWiki comes with an extension that does just that: Flag revisions of pages including multiple flag settings and modes for different sets of users. http://www.mediawiki.org/wiki/Help:Extension:FlaggedRevs I quote: FlaggedRevs is an extension ... that allows a wiki to monitor the changes that are made to pages, and to control more carefully the ...
From accessibility this would be incorrect, because <map> tag is: The map element, in conjunction with any area element descendants, defines an image map. (source from W3C) StackOverflow gives a good answer about custom elements.
It's quite likely that the forum software they are using doesn't really support the mechanisms Google and others need to read the AJAX content - as it's not as simple as just "processing the HTML": Making AJAX Applications Crawlable So the idea would be, the site loads the static HTML that is refreshed with a particular frequency (daily/hourly/etc.) ...
If you are using Chrome only, use this: https://chrome.google.com/webstore/detail/google-analytics-opt-out/fllaojicojecljbmefodhfapmkghcbnh?hl=en-US
You cannot send data to the client and expect them not to be able to save it. In your case, it sounds like the SVG images are good enough that you don't want to give them away. Could you render them to a raster format (like png) and include the lower quality png files in your presentation instead?
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