Developer Dieter Komendera reports that as of the most recent beta of OS X 10.11.4, Apple has fixed an issue that prevented Safari from properly resolving and loading shortened “t.co” links on Twitter. A number of users had been dealing with the issue.
— Dieter Komendera (@kommen) February 10, 2016
Since November, Twitter users who click shortened “t.co” links with the secured HTTPS protocol have encountered a bug that prevents content from loading. Oftentimes, when a “t.co” link is clicked, it opens up a blank web page and hangs at a loading screen for several minutes before giving an error message.
Users came up with workarounds, including reloading the “t.co” link several times, removing “https” from the URL, clearing Safari’s cache, or switching to a different browser. (Chrome and Firefox are not affected by the issue.)
A January 14th tweet from Timothy Hatcher, a WebKit Developer Experience Manager at Apple, indicated the problem was lower level than WebKit, and that Apple had a fix identified. The third beta of OS X 10.11.4, released this week, apparently includes that fix. OS X 10.11.4 will likely be released to the public in the next month or so.