Why form auto submit not working?

Question

Why this accepted answer doesn't work for me?

Automatically submitting a form when an upload file is chosen

my code:

<form>
<input id="id_image" name="image" onchange="this.form.submit();" type="file">
<input id="send" type="submit" value="submit" name="submit">
</form>

Answer 1

Because you named your second input "submit" , which shadows the submit method of the form. Rename it.

For example :

<form>
<input id="id_image" name="image" onchange="this.form.submit();" type="file">
<input id="send" type="submit" value="submit" name="somename">
</form>

Answer 2

The solution is simple :D

<form>
<input id="id_image" name="image" onchange="this.form.submit();" type="file">
<input id="send" type="submit" value="submit" name="submit2">
</form>

The code it's ok, but you call the input button with submit..:D

Change the name and it's ok!

Hope this Help! Bye.