I noticed tonight that the twitter widget on our site wasn’t loading so I checked the chrome dev console and I could see a Javascript error “tfw is undefined”
I checked the source directly at https://platform.twitter.com/widgets.js and could see it had this line
tfw-preflight
inserted before the usual !function(){… at the start of the file
Googling tfw-preflight didn’t seem to return any relevant results (just urban dictionary stuff for tfw) so I have no clue what this means and why it was prepended to the file https://platform.twitter.com/widgets.js.
after about 10 minutes everything went back to normal but I would be interested to know if anyone knows what happened and what tfw-preflight means.