Earlier this week Facebook released an updated version of the company’s iOS application. Little did they know at the time that an underlying social login dependency would cause several major applications to fail to load. Spotify, TikTok, Pinterest, Tinder, GrubHub, and others were all affected by the issue.
The outages first seem to have appeared on Wednesday at 6:30 ET, with users discussing the issue via Twitter. Downdetector.com, a popular service that helps identify application outages, shows that the issue was not an isolated event. The issue appears to have affected iOS applications that had integrated with Facebook’s social login capabilities. Facebook provided a statement to The Verge discussing the outage:
“Earlier today, a new release of Facebook included a change that triggered crashes for some users in some apps using the Facebook iOS SDK. We identified the issue quickly and resolved it. We apologize for any inconvenience.”
This situation serves as yet another opportunity to remind the developer community that outsourcing functionality, even things as simple as login services, to another company can have undesired effects.