Respawning at the edge of the world

I died while killing a spider so when i respawned i hadn't respawned in my bed i respawned at the edge of the world

What I expected to happen was...:
Respawn in my bed
 
What actually happened was...:
i spawned in the corner of my world
 
Steps to Reproduce:
1. Make a bed and make it your respawn point.
2. Get killed by a mob