Very strange bug(?), for some ?
Just went to site,
I'm not saying it's not a site issue(I've been checking for that elusive 17.11.2 that was mentioned ), but I've had no issues as yet.
I did have some issues once on 1703, where a number of favorite/bookmarked sites(edge/chrome) were failing.
Had to clear cache/history/cookies(delete problem bookmarks), then generic manual web search(add to favorites again).
Lot's of weird stuff going on with 1709(so far I've had only minor, solvable(or ignore) OS issues).