How to get the file path from HTML input form in Firefox 3

Question

We have simple HTML form with <input type="file">, like shown below:

<form>
  <label for="attachment">Attachment:</label>
  <input type="file" name="attachment" id="attachment">
  <input type="submit">
</form>

In IE7 (and probably all famous browsers, including old Firefox 2), if we submit a file like '//server1/path/to/file/filename' it works properly and gives the full path to the file and the filename.

In Firefox 3, it returns only 'filename', because of their new 'security feature' to truncate the path, as explained in Firefox bug tracking system (https://bugzilla.mozilla.org/show_bug.cgi?id=143220)

I have no clue how to overcome this 'new feature' because it causes all upload forms in my webapp to stop working on Firefox 3.

Can anyone help to find a single solution to get the file path both on Firefox 3 and IE7?

Answer 1

For preview in Firefox works this - attachment is object of attachment element in first example:

           if (attachment.files)
             previewImage.src = attachment.files.item(0).getAsDataURL();
           else
             previewImage.src = attachment.value;