I guess I didn't explain myself well, sorry. The main Landing (the one that failed me) is the one that did not have the poster frame and when I put it on it worked for me. The secondary landing (the one that had the posterframe forever) I tried by chance and it turned out that from that page there were no freezes, everything worked as usual. This is very crazy, I can't explain what relationship a YouTube video (which was paused) could have on a landing from which you went to a second page (intranet) and if, from there, you opened a third page (the first had been replaced by the second) and this one had createjs content, the related windows (opener and opened) were frozen. Mention that if on both pages (with and without posterframe) the video played, not even a part, on both it froze on the third page (opened and opener). Greetings.