But for years, some Twitter users in OS X have had a problem with t.co in Safari. Instead of redirecting, the link results in an endlessly loading page that times out. Reloading the page results in a non-existent domain. Reload again, and the destination URL finally loads.
An Apple engineer who works on the WebKit team—the technology underneath Safari—recently tweeted in response to well-known Mac developer Rich Siegel and developer and podcaster John Siracusa that the problem has been identified, and a fix is underway. So relief is coming.
You can work around it by flushing the DNS cache or by telling Tweetbot to open the URLs directly.
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