(This iOS feature is pretty undiscoverable imho, but I'm sure lots of people do use it.)

Steps to repro:

1. Go to a Wikipedia article on an iPhone running iOS8 – try Hedgehog
2. Tap on iOS search bar and type "spiny", then select the "Search in page" option

You'll be shown the three mentions of "spiny" on the page highlighted as expected, but the text of the article is zoomed in a lot for no good reason, and if you pinch-unzoom and navigate to the next result, it zooms in again. And if you tap "done," text stays zoomed.