OPTIONS issue

[solisoft]

qwest.get(my_IP')
     .then(function(xhr, response) {
        alert(response);
     });

Raise an error Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource

How can I add "Access-Control-Allow-Origin: *" in headers ?

[pyrsmk]

You have an headers option available (see the docs). But I think you're doing a CORS request, then you must have the according headers set on the response from your server : http://www.html5rocks.com/en/tutorials/cors/

[solisoft]

Well the same request using jQuery $.get method works fine !?

[pyrsmk]

They probably have some additional code. Did you test the headers option or anything else from the article?

[solisoft]

Yes they have Access-Control-Allow-Origin: * in the request header ... I wasn't able to add it with qwest

[pyrsmk]

The Access-Control-Allow-Origin: * needs to come from the server, not from qwest. As the returned error is saying, especially in the last sentence : No 'Access-Control-Allow-Origin' header is present on the requested resource.

That's why I've posted this article about CORS : http://www.html5rocks.com/en/tutorials/cors/

Because it seems you're not understanding well what is happening ^^

[pyrsmk]

Is the example you've posted above is the complete code for the request? You have no data or other options set on qwest?

[pyrsmk]

To well understand what's happening on the request, read this specific section : http://www.html5rocks.com/en/tutorials/cors/#toc-adding-cors-support-to-the-server

Furthermore, CORS is activated by your request because it seems you're running the request on a different domain than the resource itself.

[pyrsmk]

With PHP a simple header('Access-Control-Allow-Origin: *'); do the trick ;)

[solisoft]

On my ruby script I use :

before do
    response['Access-Control-Allow-Origin'] = "*" # Allow any origin
 end

Without that, jQuery raise an error too !

But here the response after a simple $.get

HTTP/1.1 200 OK
Content-Type: application/json
Content-Length: 136
Connection: keep-alive
Status: 200 OK
Access-Control-Allow-Origin: *
Date: Mon, 11 Jan 2016 16:19:22 GMT
X-Powered-By: Phusion Passenger 5.0.23
Server: nginx/1.8.0 + Phusion Passenger 5.0.23

As you can see, Access-Control-Allow-Origin: * is there.

I will copy /paste both jquery and Qwest headers and both answers

And yes I use XDomain :)

[solisoft]

I Just found my issue ... Qwest send an OPTIONS ...then my webservice raise a 404 error
It is normal ?

jQuery (OK)

$.get("http://myip/vehicles/search")

Request

GET /vehicles/search HTTP/1.1
Host: 167.114.253.203
Connection: keep-alive
Accept: /
Origin: http://localhost:8081
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36
Referer: http://localhost:8081/
Accept-Encoding: gzip, deflate, sdch
Accept-Language: fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4

Response

HTTP/1.1 200 OK
Content-Type: application/json
Content-Length: 28
Connection: keep-alive
Status: 200 OK
Access-Control-Allow-Origin: *
Date: Mon, 11 Jan 2016 16:36:12 GMT
X-Powered-By: Phusion Passenger 5.0.23
Server: nginx/1.8.0 + Phusion Passenger 5.0.23

Qwest (NOK)

qwest.get("http://myip/vehicles/search")

Request

OPTIONS /vehicles/search HTTP/1.1
Host: 167.114.253.203
Connection: keep-alive
Access-Control-Request-Method: GET
Origin: http://localhost:8081
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_11_2) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36
Access-Control-Request-Headers: accept, cache-control
Accept: /
Referer: http://localhost:8081/
Accept-Encoding: gzip, deflate, sdch
Accept-Language: fr-FR,fr;q=0.8,en-US;q=0.6,en;q=0.4

Response

HTTP/1.1 404 Not Found
Content-Length: 9
Connection: keep-alive
Status: 404 Not Found
X-Cascade: pass
Date: Mon, 11 Jan 2016 16:36:08 GMT
X-Powered-By: Phusion Passenger 5.0.23
Server: nginx/1.8.0 + Phusion Passenger 5.0.23

[pyrsmk]

Yes it's normal. The explanations from a previous issue : #90
Maybe it could fix your problem.

[solisoft]

Yep, adding { cache:true } works for me too ! Thank you for your help !

[pyrsmk]

Great!

This OPTIONS issue is really annoying by the way...

[pyrsmk]

I'm reopening this issue to have a reminder. I need to modify how the qwest's cache is working.

[solisoft]

nice, good luck :)

[pyrsmk]

Thanks ;)

[pyrsmk]

Related to this PR : #73

[pyrsmk]

I'll just update the doc since Cache-Control seems the best way to handle request caching.

[cdll]

oh thanks all above, i ve got this problem too and finally i found that i had wrongly spelling header as headers, wish anyone seeing this to check it out~ : )