1.4.10 Conformance Shown with Non-Technical Explanation
Content that requires scrolling in two directions when a desktop browser is zoomed to 400% does not reflow properly. A properly constructed long URL can reflow.
http://pithy.guide/this-is-a-fake-URL-designed-to-reflow-on-a-desktop-browser-copying-and-pasting-this-link-into-the-browser-wont-lead-anywhere