The actual culprit behind this bypassing is the unintended result of fixing the previous security issue and the developers behind the Chromium are already aware of it. The patch is likely to be on the way to Google Chrome 46 and until then, the only way to get around this situation is to disable Adblock, whitelist YouTube or maybe uninstall the YouTube app. Wait, YouTube web app on Chrome? That sounds kind of bullshit to you for your sake! You could have used the YouTube with HTML5 for smoother browsing right now on any web browser. You could have also used the YouTube app on mobile devices which obviously makes any sense.
OK, it may seem that many people were like putting blame to Google for causing this security problem but once again, the actual culprit is the one stated above at the beginning of this post. It may be a minor or normal issue level.