On this very page (Create Issue, Step 2 of 2) I am not warned if I navigate away from the page accidentally (eg hitting back, or clicking a link, or opening something in this browser from an external program, or a mouse gesture). If a navigate happens, all my editing is lost.
There should be a standard warning issued upon the appropriate HTML event for navigate-out, asking of whether I am sure I want to discard my editing, OK|Cancel.
It would be nice to also have this feature at all the pages where appropriate, as data loss happens for me from time to time.
New Feature
Open
Major
No "Navigate Out" Warning When Editing Issue
If you've put a lot of effort into writing a new issue or comment, and accidently touch one of these keys, you will lose everything you were typing, because trying to come back to the page is a re-post.
It would be (IMHO) a very easy change to add "onunload" handlers to any new/edit page, which would go through a JavaScript confirmation asking you if you want to leave the page without saving your changes.