4 Design Patterns That Violate Back-Button Expectations (Christian Holst)

During all our usability studies we’ve observed how users, both novice and expert, rely extensively on the browser back button. Often this has severe usability implications in these modern days where we design webpages with overlays, toggled states, accordion checkouts and one page applications. These new-fangled web design patterns often have a default technical structure which break user expectations and clash with the user’s mental model for how the decades-old browser “back” button functions. (baymard.com)