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POHow exactly does firefox differ from ie in handling multiple (duplicate) posts?
 

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  1. POHow exactly does firefox differ from ie in handling multiple (duplicate) posts?
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    <p>I ran into a bug in Firefox involving some out-of-sync information on my form when using the reload button after some form data had been modified (through AJAX).</p> <p>In IE (7), refreshing always seems to re-submit the originally submitted data. So, if I load a form which is then modified through JS/AJAX and refresh, I see what I saw on the first load.</p> <p>In Firefox (4), I tend (at least in this case) to see the newer data. However, because I neglected to update certain form elements, the form seems to get re-submitted with partially incorrect data, in this case potentially bringing about serious confusion.</p> <p>My question is, what exactly is the difference between the way Firefox and IE handle re-posting? Is it documented anywhere? Is either way more standard? And what about other browsers?</p> <p><strong>Edit</strong>: It might be worth noting that Firefox also seems to re-render only certain elements (in my case a label's class changes, but not an input's disabled status). Does Firefox have special rules for how it updates the DOM when refreshing and re-POSTing?</p> <p>I checked the return from the (re)POST in FF, and confirmed that it has some unusual behavior. In the source of the return I get this bit:</p> <pre><code>&lt;label id="delSheetContainer" title="Estimate Sheets with Schedule Activities in the past may not be deleted." class=""&gt; &lt;input id="delSheet" name="delSheet" type="checkbox" tabindex="3" value="false" //Inserted note: this is where the disabled value would have been onclick="this.value=(this.value &amp;&amp; 1); bSave=true; setBtn(this.checked);" /&gt;Delete Sheet &lt;/label&gt; </code></pre> <p>But in the browser (and Firebug), I see a still-disabled checkbox. The label, however, has been properly updated. Can anybody detail this behavior as well? (references appreciated!)</p> <p><strong>Edit</strong>: As Boris explained, Firefox maintains "form state" across refreshes. My problem is actually being caused by this fact; the server is returning the right stuff, but Firefox maintains the form state anyway.</p>
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    1. CONow I feel more confused than before... I'll have to do some more testing soon so I can understand this more clearly... I'll update the question further when that happens.
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