CORS API 30 --> in Android readyState 4 is fine ,.status is 0 Fail , XMLHttpRequest

1

CORS

In Android Api 30 – 10.1.1 Fail…
Android readyState is 4 fine ,.status is 0 FAIL , XMLHttpRequest

In Android 9.0.0 Fine .

2

When you say it fails, can you be more specific?

Are there any error messages in the remote console?

3 
    url                : is the page
   parameters  : parameters  post

        http_request.onreadystatechange = respuestaServidor;
        http_request.open('POST', url, true);
        http_request.setRequestHeader('Access-Control-Allow-Origin', '*'); 
        http_request.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
        http_request.setRequestHeader('Access-Control-Allow-Headers', '*'); 
        http_request.setRequestHeader("Content-length", parameters.length);
        http_request.setRequestHeader("Connection", "close");
        http_request.send(parameters);

respuestaServidor is : :

function respuestaServidor() {
    f = document.form1;
    if (http_request.readyState == 4) {
        if (http_request.status == 200) {

-------> Compilacion in  9.0.0 .. functions Fine   is http_request.readyState is 4   and http_request.status is 200
-------> Compilacion in 10.1.1 .. function fail    is http_request.readyState is 4     and http_request.status is 0

Log:

Compile Good en 10.1.1 and 9.0.0
conner93k_q584j@gexik.com
VoltBuilder run started at 2021-11-05 07:51:35.896769
Plan: Pro
Preflight Check
Output: Thanks for opting into telemetry to help us improve cordova.

Output: Creating a new cordova project.

Output: No version supplied. Retrieving version from config.xml...
Using cordova-fetch for cordova-android@10.1.1
fetch: Installing cordova-android@10.1.1 to 
Running command: npm install cordova-android@10.1.1 --save-dev
Command finished with error code 0: npm install,cordova-android@10.1.1,--save-dev
Removing "cordova-" prefix from cordova-android
Adding android project...
Loaded API for android project /node_modules/cordova-android
Creating Cordova project for the Android platform:
	Path: platforms/android
	Package: com.xxxxxx.com
	Name: Comxxxx
	Activity: MainActivity
	Android target: android-30
Copying android template project to platforms/android
Subproject Path: CordovaLib
Subproject Path: app
Android project created with cordova-android@10.1.1...............
4

Tip : If you’re pasting code, html or config files, surround the code with triple back ticks (```), before the first line and after the last one. It will be formatted properly. (We fixed it for you this time)

5

Here’s how to check the remote console.

6

Saludos,

error messages in the remote console…


Access to Index.html:1

XMLHttpRequest at 'https://comxxxx.com/compaxxx//cms/sacnestados.php' from origin 'https://localhost' has been blocked by CORS policy: 

Response to preflight request doesn't pass access control check: No 'Access-Control-Allow-Origin' header is present on the requested resource.

comxxxx.com/compaxxx/cms/sacnestados.php:1 Failed to load resource: net::ERR_FAILED
7

This is a common problem - it’s come up here several times before. There are new security requirements which apps need to follow.

There is more information in this document. Scroll down to White screen on startup