Malloc pointer being freed was not allocated — Ionic1 + cordova-plugin-wkwebview-engine

Question

Everything was running fine then suddenly this, oh yeah upgraded to Sierra before this bug and now using xCode 8.0.

Malloc: * error for object 0x1740b6e00: p

Answer 1

I struggled with this crash for hours before i finally figured out that Safari was responsible. It was due to the option Develop>Device>Automatically show web inspector for JSContext. If it doesn't work try quit Safari completely.

Answer 2

One pic is enough, for more refer to this post,

Disable auto safari or safari preview inspect, below is safari preview.