I am not able to make ajax error callback function of after 3 seconds. I tried with timeout, but it will not switch to error callback after specified time! I am not able to get the alert Got timeout
.
When I referred similar questions in this site with similar problems it didn't helped out. They all use ajax GET type. I am using jquery 1.10.1 library.
script :
$.ajax({
type: 'POST',
timeout: 3000,
url : "http://mydomain/Services.asmx/Best_Scores",
dataType: "text",
async:false,
crossDomain:true,
data: "strJsonRequest="+scoredata,
success: function (data) {
// Success code ...
},
error: function (data, textStatus, errorThrown) {
if(textStatus == "timeout") {
alert("Got timeout");
}
}
});
Any solution ?
Fix :
Change async : false
to async: true
Reason :
A synchronous AJAX call blocks until the request has been finished. Implementing a timeout is not possible for technical reasons, because the AJAX call would have to be executed later.
If an AJAX call is executed later, the function somehow has to implement a blocking feature, to stop the code from running further after the AJAX call, and execute it again after a timeout - not possible.
Today, (in 2019) I still have this problem.
I have an ajax call too long (depending from Date Start-> Date End) php script.
and after some minutes I get error 500, async: true don't help.
The call is:
$.ajax({
type: "GET",
dataType: 'json',
url: 'mymscript.php',
contentType:'application/json;charset=UTF-8;',
data: $('[name="myForm"]').serialize(),
async:true,
timeout:0,
success: function(response){
...
I resolved using: side PHP:
set_time_limit(0);
ignore_user_abort(true);
at begin of script.
echo ' ';
flush();
ob_flush();
in the middle of script (for example in main loop every day). This help to let client to don't disconnect (I think that is the main problem).
Using this I continuosly write spaces befor the final json. Fortunately jquery trim spaces before to parse the json and, in the end, the json is valid.
So I can catch response object to know if script is ended with errors or warnings.
I Hope this help somebody.
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