<p>Stack Exchange sites will save a question or answer you're composing after a while. You'll see a "draft saved" message when this happens. (If you switch to another browser, log in, and go to the same page you'll see the stuff you entered will re-appear, confirming it's actually saved on the server.) Sometimes this is helpful, but sometimes it's annoying, because there's no way to discard the saved draft.</p>

<p>To report issues like this that happen on all Stack Exchange sites, your best bet is to post on meta.stackoverflow.com. However, a "discard draft" feature has already been requested there but declined: <a href="http://meta.stackexchange.com/questions/68957/manually-resetingdiscarding-saved-question-drafts">Manually reseting+discarding saved question drafts</a>. --- <strong>Update</strong>: Another request is here: <a href="http://meta.stackexchange.com/questions/68140/add-a-clear-button-when-a-saved-draft-is-loaded">Add a clear button when a saved draft is loaded</a></p>

<p>The "save draft" feature was originally requested and implemented as described here: <a href="http://meta.stackexchange.com/questions/1177/allow-questions-to-be-saved-as-drafts-prior-to-posting">Allow questions to be saved as drafts prior to posting</a>. According to that page, only one question or answer draft is saved at a time, for up to a week. If you start a new post, the previous draft is discarded.</p>

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<p><strong>Update</strong>:</p>

<p>As a work around, you can enter the following into the address box to discard the draft saved on the Ask Question page of the current Stack Exchange site you're on.</p>

<pre>javascript:$.post("/posts/0/editor-heartbeat/ask",{title:" ",tagnames:" ",text:" "},function(){location.reload();});void(0);</pre>

<p>To make it easier to use, you can save it as a bookmark. Call it something like Discard Draft. Then if you notice a draft question has re-appeared, you can just click on the Discard Draft bookmark.</p>