The popup that tells me that the page I am viewing is using #parsoid-read-views is not obviously dismissable:
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* Clicking outside of the popup does not dismiss it.
* Hitting the escape key on my keyboard does not dismiss it.
* Clicking the link on the popup does not dismiss it.
After complaining in another venue I was clued into clicking within the popup, but not on the obvious link it's content includes, as the expected dismissal action. This feels like a learned lore behavior that is weakly discoverable.
If the popup had included a close gadget of some kind such as an **[x]** of some sort in the upper right corner I would have found the dismissal option more easily via shared UX indicators from many windowed/layered user interfaces. I may have found the click to close behavior sooner if the dialog had not contained a link with the text "Click here for more information" as well as my brain discarded clicking on the dialog without triggering the link behavior as an option.