Some Mac users have content blockers installed into Safari, which are usually designed to prevent a part of a webpage from loading, things like preventing a remote javascript that tracks cookies or loads ads, or something that places a cookie into your browser, etc.

The very nature of how content blockers work can cause interference with certain webpages, and it’s not unusual for content blockers to completely break a website or webpage from functioning. Problems with content blockers are particularly common with finance and banking sites, wi-fi captive…