[Seaside] How can I debug ajax errors?
Mariano Martinez Peck
marianopeck at gmail.com
Fri Feb 10 20:29:28 UTC 2017
On Fri, Feb 10, 2017 at 5:02 PM, Mariano Martinez Peck <
marianopeck at gmail.com> wrote:
> Hi guys,
>
> It happens to me quite frequently that I have some issue in an AJAX calls.
> On Chrome, I see:
>
> Uncaught SyntaxError: Unexpected token $ in JSON at position 0
> at JSON.parse (<anonymous>)
> at Function.n.parseJSON (jQuery.js:4)
> at HTMLDocument.<anonymous> (reps?_s=YZ0L_G1AYPiERSfd&_k=
> lD9O_xh3oh59qMMq:453)
> at HTMLDocument.dispatch (jQuery.js:3)
> at HTMLDocument.r.handle (jQuery.js:3)
> at Object.trigger (jQuery.js:3)
> at x (jQuery.js:4)
> at XMLHttpRequest.b (jQuery.js:4)
>
> But there is no way for me to know what triggered that at Seaside level.
> If I inspect the "VM2043:1" kind of link in the Chrome console, I get to
> the script generated by my ajax which is something like:
>
> $("#id174").replaceWith("<div class=\"companyReportMainDiv\"
> id=\"id232\"><div id=\"popupContainer9358488\" class=\"popupContainer\"></
> div><script
> ..........
> )
>
>
OK, the JSON failure was due to my AJAX error handler, which was trying to
do (see bold part)
var requestResponse = {
url: settings.url,
method: settings.type,
data: settings.data,
httpStatus: jqxhr.status,
error: exception || jqxhr.statusText,
data: settings.data
};
responseText = jqxhr.responseText;
responseText.replace(/[\\"'']/g, ''\\$&'').replace(/\u0000/g, ''\\0'');
console.error(requestResponse);
*jsonValue = jQuery.parseJSON(responseText);*
I am now printint to console the requestResponse that was in this ajax
error handler, and this is what I get:
1. Object
1. data:undefined
2. error:SyntaxError: Unexpected token , at eval (<anonymous>) at
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2616 at
Function.globalEval (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2627) at
n.fn.init.domManip (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:3:22515)
at n.fn.init.replaceWith (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:3:21650)
at eval (eval at <anonymous> (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2616),
<anonymous>:1:13) at eval (<anonymous>) at
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2616 at
Function.globalEval (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2627) at
text script (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:4:26788)
1. message:"Unexpected token ,"
2. stack:"SyntaxError: Unexpected token ,↵ at eval (<anonymous>)↵
at
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2616↵
at Function.globalEval (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2627)↵
at n.fn.init.domManip (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:3:22515)↵
at n.fn.init.replaceWith (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:3:21650)↵
at eval (eval at <anonymous> (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2616),
<anonymous>:1:13)↵ at eval (<anonymous>)↵ at
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2616↵
at Function.globalEval (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2627)↵
at text script (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:4:26788
)"
3. __proto__:Error
3. httpStatus:200
4. method:"GET"
5. url:
"/reps?_s=YZ0L_G1AYPiERSfd&_k=-szkZv0x3mvWhG7t&193&203=VALE&206=1&207=&216=&221=&_=1486757530835"
6. __proto__:Object
SyntaxError: Unexpected token , at eval (<anonymous>) at
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2616 at
Function.globalEval (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2627) at
n.fn.init.domManip (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:3:22515) at
n.fn.init.replaceWith (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:3:21650) at eval
(eval at <anonymous> (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2616),
<anonymous>:1:13) at eval (<anonymous>) at
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2616 at
Function.globalEval (
https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:2:2627) at text
script (https://debrisdemo.quuve.com/JQDeploymentLibrary/jQuery.js:4:26788)
I don't understand what is going on. Any ideas?
Thanks in advance
> Chrome shows me that with a red underline like if that would have an
> error, but such JS is correct.
>
> Any idea how can I know what is going on?
>
>
> --
> Mariano
> http://marianopeck.wordpress.com
>
--
Mariano
http://marianopeck.wordpress.com
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