Even though the error was entirely mine, I might suggest adding an FAQ that advises trying the ?nocache=1 query parameter to eliminate caching as a possible culprit for the dreaded “it’s not working” problem.
I can confirm that the problem is not limited to Chrome. Same thing happens when I use Safari. Laggy behavior started right around the time my recent post hit 1,300 words. Further troubleshooting with the Health Check plugin will take some time, but I will report back.
