[SailfishDevel] browser versus ajax

[Kim Foder]

> Both captures have 200 response

Yes that much I can understand.

If you look at this picture (from wireshark), you will see that the first request is successful, 
but the second one behaves differently.

Even though it returns a status 200, something is wrong as shown in line 14 & 15.



I'm using the following code to do both requests:

    function execCommand(command)
    {
        var xhr = new XMLHttpRequest();
        xhr.onreadystatechange = function() {
          console.log('ReadyState: ' + xhr.readyState);
          if(xhr.readyState == 4)
          {
            console.log('Status: ' + xhr.status);
            if (xhr.status == 200){
              var fv = xhr.responseText;
              console.log('Result: ' + fv);
          }}
        }
        var c = "http://10.5.5.9:8080/" + command;
        console.log(c);
        xhr.open('GET',c);
        xhr.send();
    }

And the following to execute the request (in a button onclick event):

execCommand("gp/gpControl/status");

The output for the failing request is:

execCommand: 89 - http//10.5.5.9:8080/gp/gpControl/status
:77 - ReadyState: 1

and after a very long time (at least it feels that way):

:77 - ReadyState: 4
:80 - Status: 0

/Kim

On fredag den 24. juni 2016 13.49.42 CEST Kimmo Lindholm wrote:
> And how it looks with your app?
> Both captures have 200 response
> 
> Can show your code too?
> 
> -kimmo
> 
> -----Original Message-----
> From: devel-bounces at lists.sailfishos.org
> [mailto:devel-bounces at lists.sailfishos.org] On Behalf Of Kim Foder Sent:
> 23. kesäkuuta 2016 23:33
> To: devel at lists.sailfishos.org
> Subject: [SailfishDevel] browser versus ajax
> 
> Hi
> 
> I'm trying to make a gopro Hero4 app for Sailfish, but have hit a wall :(
> 
> When I send a request to the Hero (for example a status request http://
> 10.5.5.9:8080/gp/gpControl/status) in the address line of a browser (laptop
> or Jolla) I get the expected response, but when I try via ajax from qml I
> get no response (ready state 1 and after a long time ready state 4).
> 
> I have captured the IP traffic (in pcap format), but do not have enough
> knowledge to interpret the results.
> 
> If anyone here do have the knowledge to help me, I'll be gratefull.
> 
> The captured sessions can be downloaded here:
> http://kimfoder.dk/capture.zip.
> 
> /Kim
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