Upon request, I add this here to show my solution, which worked just fine:
My soul is thanks to the link provided by Madmartigan on the TinyMCE forum . Getting rid of the autosave plugin did not work, I wrote:
window.onbeforeunload = function() {};
And he got rid of the popup. It looks like it could be a bug with TinyMCE, since I have the initialization code, I copied their demo.
locrizak
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