Lot's o' stuff in console.log

I’m suddenly seeing a ton of stuff go to the client log, such as this;

Template._withTemplateInstanceFunc@http://localhost:3000/packages/blaze.js?hash=ef41aed769a8945fc99ac4954e8c9ec157a88cea:3687:12
viewAutorun/<@http://localhost:3000/packages/blaze.js?hash=ef41aed769a8945fc99ac4954e8c9ec157a88cea:1873:14
Blaze._withCurrentView@http://localhost:3000/packages/blaze.js?hash=ef41aed769a8945fc99ac4954e8c9ec157a88cea:2214:12
viewAutorun@http://localhost:3000/packages/blaze.js?hash=ef41aed769a8945fc99ac4954e8c9ec157a88cea:1872:12
Tracker.Computation.prototype._compute@http://localhost:3000/packages/tracker.js?hash=6f5d0f5486aaa54b0abe636174eeb06dcc2a736b:351:5
Tracker.Computation.prototype._recompute@http://localhost:3000/packages/tracker.js?hash=6f5d0f5486aaa54b0abe636174eeb06dcc2a736b:370:9

I’m guessing I accidentally turned something on. Makes it really hard to debug because you can’t see useful messages among the noise.