CRcrynix·Mar 4, 2013Submission
LocalStorage Exploit on Chrome, Safari (iOS and desktop), and IE
14 points · Open discussionfeross
filldisk.com
HTML2013–2013
feross / filldisk.com
filldisk.com
:floppy_disk: Masterful trolling with HTML5 localStorage
3Distinct people
3Mentions
0Explicit recommenders
914GitHub stars
What to know before exploring
What it is
:floppy_disk: Masterful trolling with HTML5 localStorage
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
No recommendation phrase was found in the indexed comments.
No classified warning is attached to this page. Read the discussions before treating silence as approval.
Also in these discussions
No other repository is repeatedly linked in the same discussions.
This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 12:54:37 PM UTC.
No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.
Mentions over time
HN mentions by 3-hour interval3 dated mentions
Observed mentions: 2013-02-28 07:32:42 UTC to 2013-03-04 05:33:47 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| Feb 28, 06:00 | 2013-02-28 06:00:00 UTC | 2013-02-28 09:00:00 UTC | 2 | 0 | 2 |
| Feb 28, 09:00 | 2013-02-28 09:00:00 UTC | 2013-02-28 12:00:00 UTC | 0 | 0 | 0 |
| Feb 28, 12:00 | 2013-02-28 12:00:00 UTC | 2013-02-28 15:00:00 UTC | 0 | 0 | 0 |
| Feb 28, 15:00 | 2013-02-28 15:00:00 UTC | 2013-02-28 18:00:00 UTC | 0 | 0 | 0 |
| Feb 28, 18:00 | 2013-02-28 18:00:00 UTC | 2013-02-28 21:00:00 UTC | 0 | 0 | 0 |
| Feb 28, 21:00 | 2013-02-28 21:00:00 UTC | 2013-03-01 00:00:00 UTC | 0 | 0 | 0 |
| Mar 1, 00:00 | 2013-03-01 00:00:00 UTC | 2013-03-01 03:00:00 UTC | 0 | 0 | 0 |
| Mar 1, 03:00 | 2013-03-01 03:00:00 UTC | 2013-03-01 06:00:00 UTC | 0 | 0 | 0 |
| Mar 1, 06:00 | 2013-03-01 06:00:00 UTC | 2013-03-01 09:00:00 UTC | 0 | 0 | 0 |
| Mar 1, 09:00 | 2013-03-01 09:00:00 UTC | 2013-03-01 12:00:00 UTC | 0 | 0 | 0 |
| Mar 1, 12:00 | 2013-03-01 12:00:00 UTC | 2013-03-01 15:00:00 UTC | 0 | 0 | 0 |
| Mar 1, 15:00 | 2013-03-01 15:00:00 UTC | 2013-03-01 18:00:00 UTC | 0 | 0 | 0 |
| Mar 1, 18:00 | 2013-03-01 18:00:00 UTC | 2013-03-01 21:00:00 UTC | 0 | 0 | 0 |
| Mar 1, 21:00 | 2013-03-01 21:00:00 UTC | 2013-03-02 00:00:00 UTC | 0 | 0 | 0 |
| Mar 2, 00:00 | 2013-03-02 00:00:00 UTC | 2013-03-02 03:00:00 UTC | 0 | 0 | 0 |
| Mar 2, 03:00 | 2013-03-02 03:00:00 UTC | 2013-03-02 06:00:00 UTC | 0 | 0 | 0 |
| Mar 2, 06:00 | 2013-03-02 06:00:00 UTC | 2013-03-02 09:00:00 UTC | 0 | 0 | 0 |
| Mar 2, 09:00 | 2013-03-02 09:00:00 UTC | 2013-03-02 12:00:00 UTC | 0 | 0 | 0 |
| Mar 2, 12:00 | 2013-03-02 12:00:00 UTC | 2013-03-02 15:00:00 UTC | 0 | 0 | 0 |
| Mar 2, 15:00 | 2013-03-02 15:00:00 UTC | 2013-03-02 18:00:00 UTC | 0 | 0 | 0 |
| Mar 2, 18:00 | 2013-03-02 18:00:00 UTC | 2013-03-02 21:00:00 UTC | 0 | 0 | 0 |
| Mar 2, 21:00 | 2013-03-02 21:00:00 UTC | 2013-03-03 00:00:00 UTC | 0 | 0 | 0 |
| Mar 3, 00:00 | 2013-03-03 00:00:00 UTC | 2013-03-03 03:00:00 UTC | 0 | 0 | 0 |
| Mar 3, 03:00 | 2013-03-03 03:00:00 UTC | 2013-03-03 06:00:00 UTC | 0 | 0 | 0 |
| Mar 3, 06:00 | 2013-03-03 06:00:00 UTC | 2013-03-03 09:00:00 UTC | 0 | 0 | 0 |
| Mar 3, 09:00 | 2013-03-03 09:00:00 UTC | 2013-03-03 12:00:00 UTC | 0 | 0 | 0 |
| Mar 3, 12:00 | 2013-03-03 12:00:00 UTC | 2013-03-03 15:00:00 UTC | 0 | 0 | 0 |
| Mar 3, 15:00 | 2013-03-03 15:00:00 UTC | 2013-03-03 18:00:00 UTC | 0 | 0 | 0 |
| Mar 3, 18:00 | 2013-03-03 18:00:00 UTC | 2013-03-03 21:00:00 UTC | 0 | 0 | 0 |
| Mar 3, 21:00 | 2013-03-03 21:00:00 UTC | 2013-03-04 00:00:00 UTC | 0 | 0 | 0 |
| Mar 4, 00:00 | 2013-03-04 00:00:00 UTC | 2013-03-04 03:00:00 UTC | 0 | 0 | 0 |
| Mar 4, 03:00 | 2013-03-04 03:00:00 UTC | 2013-03-04 06:00:00 UTC | 1 | 1 | 0 |
What Hacker News says
3 sourcesYep, I included lots of comments in the source code so that people could check it out and learn how it works: https://github.com/feross/filldisk.js
In HTML5 localStorage allows sites to fill up users' hard disksSome analysis of how this works,
1. The main page contains an iframe which serves this script:
https://github.com/feross/filldisk.js/blob/master/static/fra...
2. This script writes a 2,500,000-length string to local storage, which should occupy at least 2.5Mb (probably much more). This matches the maximum storage per sub-domain.
3. This script then reloads the iframe on a different subdomain but the same script. GOTO 2.
In HTML5 localStorage allows sites to fill up users' hard disks