WKWebView Synchronous Ajax/XmlHttpRequest timeout

PLATFORM AND VERSION iOS Development environment: Other: Xamarin iOS App Run-time configuration: iOS 14.4.2 and above

DESCRIPTION OF PROBLEM We are using WKWebView control in our application. It loads a page, wherein there is a code which gets triggered to execute a Synchronous Ajax/XmlHttpRequest. This request needs about 1 min time to complete, but it gets aborted after 10 secs.

Observed in iPhone 6S 14.4.2. Also seen the same behavior in the latest version of iPhone and iPad OS.

Need help on the below points:

• How can I extend this timeout?
• Making it an Asynchronous call would have regression. Hence the ask for any other alternative to extend this timeout.

STEPS TO REPRODUCE In the WKWebView have a webpage, which gives a Synchronous ajax/XmlHttpRequest call to a Web API, which takes more than 10 seconds to complete. The Ajax call sample code is as below, which uses jquery:

var startTime = performance.now();

$.ajax({
    async: false, // Synchronous ajax call
    type: "POST",
    url: "http://testsite:8000/api/RunTestTimer",
    contentType: "application/json; charset=utf-8",
    data: JSON.stringify({
        timeInSeconds: 15
    }), // timeInSeconds is the parameter name in the Web API, which I used to run a timer on the server-side for the value passed to the ajax call
    dataType: "json",
    beforeSend: skelta.forms.utilities.addRequestHeaders
})
.done(function (result) {
    var endTime = performance.now();
    var message = "Request Successful (Time Taken to execute: " + ((endTime - startTime) / 1000).toFixed(3) + " secs; Type: " + "POST" + "; Async: " + "FALSE" + "; Timer: " + "15" + " seconds):" + JSON.stringify(result);
    console.log(message);
})
.fail(function (result) {
    var endTime = performance.now();
    var message = "Request Failed (Time Taken to execute: " + ((endTime - startTime) / 1000).toFixed(3) + " secs; Type: " + "POST" + "; Async: " + "FALSE" + "; Timer: " + "15" + " seconds):" + JSON.stringify(result);
    console.log(message);
});