Warpcast

Composer Bug: Casts are deleted (not saved in drafts) if you accidentally press the back button on web. I lost a cast I had spent a long time typing up due to this.

Steps to reproduce (Chrome on Mac as an example):
1. Type cast
2. Press back button

Expected behavior:
Warning is presented and/or cast is saved in draft

Actual behavior:
No warning is presented and cast is not saved. Cast is lost.

Co-founder of @syndicate. Creator of $AGLD, Core Team at ConstitutionDAO. ETH since the 2014 presale