I have set Safari on board my iPad Mini (first edition) to always run in incognito mode. Every time I start it and go to YouTube or any other video service, I can clearly see, that volume is set to half. I don't know how many times I turned it down to 0, it always is "reset" once I re-start Safari.
This happens only with Safari. Other browsers (Chrome) and all other applications always starts with the volume, it was set, when leaving it. This brings me to a bit mad assumption, that in incognito mode Safari does not save anything, neither browsing data (cookies, history) nor its own settings.
Can that be true?