The Culprit, Apparently Just A Chrome Extension.......

So this afternoon... After days, even weeks, thinking and analysing... Why the setup in this journal always ends up error, and inserting a strange div by itself... I finally found the answer... It was due to an extension, named Definer. Honestly, it's a good extension, one that I've been long and looking for... But I just realised that it broke my journal website... I just couldn't save any setting, it always erase some character by itself, and...

Why I suspect this extension?

Cause after I disable it, the div is gone, from all pages and html input area... Which makes me more sure that it probably the culprit after all... There's probably another one, which is five XML characters that I need to escape, but I am sure that's not the culprit as last year I could still save the setting regardless of this characters still present at that time...

I am feeling tired, wanna buy something like foods or snacks or beverages but I still can't do so... *sigh