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1900Re: Looking for help with syntax error

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  • Reaus@yahoo.com
    Jul 11, 2012
    • 0 Attachment
      Well.. that makes sense. But then why would it work when sitting on one server, and not  on the other?

      It's the same code (I've double and triple checked), and the same browser (i'm using IE8 from my laptop to point to both the dev server and the QA server), so my logical (at least in my mind) assumption was that it had to be some sort security setting on the Windows 2008 server.  I could be wrong, but that was just what it seemed like to me.


      Believe me, I would glad to be wrong about this if I can figure out a fix!  :)


      Tim




      ________________________________
      From: Jos de Jong <wjosdejong@...>
      To: Gil <reaus@...>
      Sent: Wednesday, July 11, 2012 3:29 PM
      Subject: Re: Looking for help with syntax error


      Why do you think the problem has to do with the server? "JSON not declared" is a client side issue. And if the responseText is correct (and you tested it as being valid JSON), the side apparently works fine, and the problem should be located client side, right?



      On Wed, Jul 11, 2012 at 9:14 PM, Gil <reaus@...> wrote:


      >Hi, Thanks for the tips, but I've already done this.
      >
      >I've looked at the return value from both environments and they're identical. So since it's valid data in one instance, it should be valid in the other.
      >
      >And I know that my browser supports JSON, since as I've stated, it works in my browser if pointed to my development server, but not if pointed to the QA server.
      >
      >I keep going back to the idea that it must be some security setting on the 2008 servers, possibly with the http_request call, since both errors happen on a line with the http_request in it. The QA servers are in a farm, but I  get the same syntax errors whether I go through the load balancer or hit the server directly.
      >
      >Thanks for your help.
      >
      >
      >
      >--- In json@yahoogroups.com, Jos de Jong <wjosdejong@...> wrote:
      >>
      >> To figure out what is going wrong, just do some debugging of your
      >> application - nothing special JSON related...
      >>
      >> - inspect the contents of http_request.responseText, to verify if this is
      >> indeed valid JSON data. You can put a debug point (if your browser supports
      >> that), or output the response via console.log(http_request.responseText).
      >> - test if your browser supports JSON, just do some tests in your browsers
      >> console, see if JSON.parse('{"J":5,"0":"N"}') works for example
      >>
      >>
      >> On Wed, Jul 11, 2012 at 8:07 PM, Reaus@... <reaus@...> wrote:
      >>
      >> > **
      >
      >> >
      >> >
      >> > I'm trying to implement a JSON call to simulate AJAX on a certain page
      >> > where an AJAX panel isn't a viable option.
      >> >
      >> > I want call my .aspx page when a State is selected from a drop down and
      >> > populate the Counties drop down.
      >> >
      >> > in my State dropdown, I have this call:
      >> >
      >> > onchange="jsonDropDownLoader('COUNTIES', this, 'Content2_DDLCounties')"
      >> >
      >> > That call is on the page and the code is here:
      >> >
      >> > function jsonDropDownLoader(sType, oParent, oChild) {
      >> >     var lstrChild = document.getElementById(oChild);
      >> >     var lstrFilter = ""
      >> >
      >> >     if (oParent.value > "") {
      >> >         lstrFilter = oParent.value
      >> >     }
      >> >
      >> >     lstrChild.options.length = 0;
      >> >     if (oParent.value > "") {
      >> >         var JSONobject = {};
      >> >         var http_request = new XMLHttpRequest();
      >> >         url = "/AltairWeb.NET/RS/jsonDropDownLoader.aspx?TYPE=" + sType +
      >> > "&FILTER=" + lstrFilter
      >> >         http_request.open("GET", url, false);
      >> >         http_request.onreadystatechange = function () {
      >> >             var done = 4, ok = 200;
      >> >             if (http_request.readyState == done && http_request.status ==
      >> > ok) {
      >> >                 JSONobject = JSON.parse(http_request.responseText);
      >> >             }
      >> >         };
      >> >         http_request.send(null);
      >> >         var JSONarray = eval('(' + http_request.responseText + ')').data
      >> >         for (var i = 0; i < JSONarray.length; ++i) {
      >> >             var optn = document.createElement("OPTION");
      >> >             optn.text = JSONarray[i].text;
      >> >             optn.value = JSONarray[i].value;
      >> >             lstrChild.options.add(optn);
      >> >         }
      >> >     }
      >> > }
      >> >
      >> > It returns a string which I then use to populate the County drop down.
      >> >
      >> > I'm getting data back, but it's not rendering on your QA server. Using the
      >> > developer tools with IE8, I can see that I have a error on this line:
      >> >
      >> > JSONobject = JSON.parse(http_request.responseText);
      >> > it says that JSON is not declared.
      >> >
      >> > It says I also have a syntax error on this line:
      >> >
      >> > var JSONarray = eval('(' + http_request.responseText + ')').data
      >> >
      >> > This works perfectly on my development box. However, my development box
      >> > has WinXP / IIS 5 on it, whereas, our QA server is a Win2008 server with
      >> > IIS7.5.  We have new development boxes coming, but until then, I'm stuck
      >> > with the XP machine.
      >> >
      >> > Since it works locally, it seems like it must be a security issue with
      >> > either Windows or IIS on the QA server, possibly with the http_request
      >> > call, but I can't find anything via google that has helped me figure this
      >> > out.
      >> >
      >> > Any ideas?
      >> >
      >> > Thanks in advance!
      >> > Tim
      >> >
      >> > [Non-text portions of this message have been removed]
      >> >
      >> >
      >> >
      >>
      >>
      >> [Non-text portions of this message have been removed]
      >>
      >
      >
      >

      [Non-text portions of this message have been removed]
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