We only support the official browsers on Android and iOS. Unfortunately "Chrome" on iOS is quirktown central, exhibiting many bizarre behaviors that appear nowhere in Chrome for Android (or Desktop for that matter). Because it isn't Chrome.
That is slightly changed in 2016 as the faster Safari JS intervals are exposed to iOS apps at last, but the money quote is this, and is true as it ever was:
On iOS, Apple has never allowed third-party browsing engines. Developers can build browsers, but they’re always just wrappers for the platform’s Webkit-based first-party engine.
You were definitely on the mobile layout? You hadn't accidentally switched to desktop layout somehow?