Subdomains shared quota limit of localStorage Tags storage Applications ✅ Firefox ❎ IE 10 ✅ IE 11 See also https://github.com/feross/filldisk.com Introducing the HTML5 Hard Disk Filler™ API » Feross.org 1064466 – Firefox shares LocalStorage quota across all sub-domains of a domain name Issue 178980 - chromium - localStorage bug allows sites to fill up hard disk / crash Chrome - Monorail #AX21