Is this a normal multipart post request? If not, perhaps you should use 
request.body.read() and log what is in there.


On Thursday, 27 March 2014 07:48:39 UTC-5, ayresrichard wrote:
>
>
> I am developing a web browser application where the user must upload a 
> image file to a web2py server.
>
> I am using the traditional way for file input, which, in the iPad, gives 
> the option to either upload an existing picture or take a new one from the 
> camera.
>
> var url = "http://please-help-me.com";;          
> var file = document.getElementById("file").files[0];
>
>
> var fd2 = new FormData();
> fd2.append("upload", file);
> fd2.append("id", 123);  
>
>
> var reader = new XMLHttpRequest();
> reader.open('post',url, true); 
> reader.onreadystatechange = function() {
>     console.log("Status:" + reader.status);
> }
> reader.send(fd2);
>
>
> This works fine in the desktop browsers, Android browser, but not in the 
> iPad, where it occasionally gives a 400 Bad Request Error. It doesn't 
> return the error every time. Just sporadically.
>
> Web2py returns this error message:
>
>   ERROR:Rocket.Errors.Thread-20:Traceback (most recent call last):
>   File "/home/mdipierro/make_web2py/web2py/gluon/rocket.py", line 1337, inrun
>   File "/home/mdipierro/make_web2py/web2py/gluon/rocket.py", line 1838, 
> inrun_a
> pp
>   File "/home/mdipierro/make_web2py/web2py/gluon/main.py", line 651, 
> inapp_with
> _logging
>   File "/home/mdipierro/make_web2py/web2py/gluon/main.py", line 532, 
> inwsgibase
>   File "/home/mdipierro/make_web2py/web2py/gluon/globals.py", line 252, inbody
> HTTP: 400 BAD REQUEST
>
>
> Searching in the code, it appears the content of the post message is not 
> valid and the web2py body function has trouble reading it. The error rises 
> when I try to read the request.post_vars data
>
> I've tested the code without sending the image (and only sending other 
> data) and it seems to be working every time. Is there a specific parameter 
> I should add to the request? Why does it work sometimes, but not all the 
> time?
>
> Thanks
>

-- 
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