A U.S. appeals court has revived a lawsuit filed by the mother of a 10-year-old girl from Chester who died attempting a viral "blackout challenge" that the family says she watched on TikTok. The challenge dared people to choke themselves until they lost consciousness. 

Federal law generally protects online publishers from liability for content posted by others. But the court says TikTok could potentially be found liable for promoting the content or using an algorithm to steer it to children. 

Lawyers for the mother say it appeared in Nylah Anderson’s “For You" feed after TikTok determined that she might watch it — even after other children had died trying it.

TikTok's parent company ByteDance has not yet commented.

(Photo by Dan Kitwood/Getty Images)