That seems fishy? I'll bet Adobe patches this so we end up screwed again.
Yes! You were so prescient! This was working fine until the recent cycle of updates to to Player 11.5 along with the web site software.
The official Player 11.1 no longer works on sites that have upgraded to the latest Flash and neither does the PPC version. Only a few sites seem to have jumped on the update so far, but as more do, this will become more vexing.
A new solution is needed!