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HTTP_None |
Thu, Sep 3 2015 2:34 AM | Permanent Link |
Petter Topp | My server module receives a request from TServerRequest and do it's processing and finally sends a a response using Request.SendContent(Result).
The Result string is not empty, but at the client side I just get HTTP_None (0) I'm lost, what am I missing? This setup was originally written using EWB1 and corresponding server module version. I have now rewritten (copy/paste) the project using EWB 2.01 software. Br Petter |
Thu, Sep 3 2015 3:56 AM | Permanent Link |
Walter Matte Tactical Business Corporation | I don't think anyone could answer this without see code. But have you tried running Fiddler to watch the HTTP traffic to actually see the string being returned?
If you don't I would start by checking server code. Walter |
Thu, Sep 3 2015 4:30 AM | Permanent Link |
Petter Topp | Walter Matte wrote:
I don't think anyone could answer this without see code. But have you tried running Fiddler to watch the HTTP traffic to actually see the string being returned? If you don't I would start by checking server code. Walter Hi Walter. Your suggestion is perfect, I was stuck... I have started Fiddler, but I'm a novise, however, here is what I can see: In the large window to the left (requests?), I could see my request was sent. When I select the request, I can see the querystring in the webforms pane. If I click the TextView pane in the lower right window, I can see the response I was expecting. As far as I can tell thing seem to work, only I don't get any response in the OnComplete event for the TServerRequest. Any ideas? |
Thu, Sep 3 2015 4:41 AM | Permanent Link |
Matthew Jones | Petter Topp wrote:
> If I click the TextView pane in the lower right window, I can see the > response I was expecting. > > As far as I can tell thing seem to work, only I don't get any > response in the OnComplete event for the TServerRequest. Okay, next step is to use the F12 debug tools in Chrome to watch the traffic. You can also single step the javascript if you want, which will match the EWB code quite nicely. One thing I've done in the past is put "myVar := 'FINDME'" in key functions, and then you can find that in the debugger and put in a breakpoint. -- Matthew Jones |
Thu, Sep 3 2015 5:20 AM | Permanent Link |
Petter Topp | "Matthew Jones" wrote:
Petter Topp wrote: > If I click the TextView pane in the lower right window, I can see the > response I was expecting. > > As far as I can tell thing seem to work, only I don't get any > response in the OnComplete event for the TServerRequest. >> Okay, next step is to use the F12 debug tools in Chrome to watch the >> traffic. You can also single step the javascript if you want, which >> will match the EWB code quite nicely. One thing I've done in the past >> is put "myVar := 'FINDME'" in key functions, and then you can find that >> in the debugger and put in a breakpoint. >>-- >>Matthew Jones Ok - Started Chrome debug tool. Selected the Console Pane and found the following: XMLHttpRequest cannot load http://192.168.207.29/modules/Admin?Action=Login&Name=Petter&Pass=password. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access. Not sure what this means, but things are working when I deploy to my server. Duh. Second post in two days that makes me feel quite lost... Petter |
Thu, Sep 3 2015 7:59 AM | Permanent Link |
Matthew Jones | Petter Topp wrote:
> No 'Access-Control-Allow-Origin' header is present on the requested > resource. Once you are into the browser sphere of operation, you have a world of resources to help you, as you can just google the errors etc, and anyone else with this in javascript land will be able to help you. Have a look at http://stackoverflow.com/questions/20035101/no-access-control-allow-orig in-header-is-present-on-the-requested-resource which explains why this is happening - you are accessing one server from another, and that is a security issue. Thus you have to take steps to allow it, or just run from your main server all the time. -- Matthew Jones |
Thu, Sep 3 2015 8:06 AM | Permanent Link |
Uli Becker | Wrong thread, Matthew
Uli |
Thu, Sep 3 2015 8:09 AM | Permanent Link |
Uli Becker | Sorry Matthew, my newsreader's treeview was obviously messed up.
Your post appeard in another thread. Uli |
Thu, Sep 3 2015 8:26 AM | Permanent Link |
Matthew Jones | Uli Becker wrote:
> Sorry Matthew, my newsreader's treeview was obviously messed up. > Your post appeard in another thread. It appeared okay in mine, but if not in others, apologies. I just replied as usual in XanaNews. -- Matthew Jones |
Thu, Sep 3 2015 9:10 AM | Permanent Link |
Raul Team Elevate | On 9/3/2015 5:20 AM, Petter Topp wrote:
> Ok - Started Chrome debug tool. Selected the Console Pane and found the following: > XMLHttpRequest cannot load http://192.168.207.29/modules/Admin?Action=Login&Name=Petter&Pass=password. No 'Access-Control-Allow-Origin' header is present on the requested resource. Origin 'http://localhost' is therefore not allowed access. This error is also Chrome internal and not surfaced for javascript - hence the http_none > Not sure what this means, but things are working when I deploy to my server. It means that EWB app and data are coming from different sources (for example different servers (in terms of host name) or even if on same host the ports are different. With server you either load the EWB app and data from same source (same host + port) or your server includes the > Duh. Second post in two days that makes me feel quite lost... This has been discussed in newsgroups (Search for Access-Control-Allow-Origin) but in general your server where data comes from has to return a Access-Control-Allow-Origin header for this to work. When using EWB Web Server then setting on Content page "Enable Cross-Origin Resource Sharing" does it for you for there. Raul |
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