I refreshed a game page, and then the icons on the page took a long time to load, and then for some reason those icons showed up on the site header:

After refreshing the page again, the icons went back to normal. Did this happen to anyone else?

I'm assuming that's default browser emoji, before the SRC CSS takes over. This has been the case in forever.

Someone sent me this over a year ago and I noted the different icons as well, I think @Riekelt is on the right lines