在Windows 10（UWP）上Ionic 3 Cordova ajax调用失败 [英] Ionic 3 Cordova ajax calls fail on Windows 10 (UWP)
问题描述
我之前试图问这个问题，买不到真正的答案，现在已经挣扎了一个多月。
我无法让我的ajax调用工作在为Windows 10 UWP构建的Ionic 3 Cordova应用程序上。他们可以访问localhost，但不能访问任何外部连接。
该应用程序在Android和iOS上均可正常运行。
我试图在我的开发本地测试机。我使用证书（已购买）签署应用程序，安装此证书，构建Windows应用程序，并能够打开构建的 CordovaApp.Windows10_1.0.1.1_x86.appxupload ，然后双击要安装的嵌入式 CordovaApp.Windows10_1.0.1.1_x86.appx 文件，该文件成功完成。安装表明应用程序需要访问互联网。
在 config.xml 中，我有以下标记，如在别处建议...
< allow-navigation href =*/>
< access origin =*/>
但是，当我运行时，http.get调用只返回 0 没有其他信息。我可以在Visual Studio中运行，并查看返回的错误对象，除了 0 返回之外，不再获取更多信息。
我已经运行了fiddler，启用了https解密，如这里，但我在响应标题中看到的只是
HTTP / 1.0 200建立连接
FiddlerGateway：直接
开始时间：13：44：21.686
连接：关闭
主要结果视图实际上显示 200 ，所以我认为这不会向我显示任何真实内容。
我在完全失败。我没有其他地方可以搜索。我可以缺少什么？
我是否可以在Windows 10机器上使用外部ajax，当我在这里安装应用程序时？我还没有在商店试过，因为我不想上传，直到我知道它有效。
任何建议都会受到极大的欢迎。肯定有人有一个Ionic 3应用程序访问外部ajax吗？
提前感谢您的任何帮助
[更新1]
如果我在同一台机器上运行应用程序，只需使用Ionic服务（因此它只是在浏览器中运行而不是托管在UWP中，ajax调用也可以正常工作。
[更新2]
我现在使用Visual Studio模板创建了一个Cordova应用程序，因此将所有其他框架排除在外。
我使用vanilla JavaScript进行休息调用...
document.addEventListener（'deviceready'，callUrl，false）;
函数callUrl（）{
console.log（'callUrl'）;
var xhr = new XMLHttpRequest（）;
xhr.open（'GET'，'https：//myserveraddress.com/myapp/testroute'）;
xhr.send（null）;
xhr.onreadystatechange = function（）{
var DONE = 4; // readyState 4表示请求已完成。
var OK = 200; //状态200是成功返回。
if（xhr.readyState === DONE）{
if（xhr.status === OK）
console.log（xhr.responseText）;
} else {
console.log（'错误：'+ xhr.status）;
}
}
};
我在调试器中运行它，即使在这里我收到错误（状态代码为0）。
当我打开构建包并查看 cordova_plugins.js 文件时，我注意到了另一件事。 / p>
我的Ionic应用程序具有以下内容......
cordova.define （'cordova / plugin_list'，函数（require，exports，module）{
module.exports = [
{
id：cordova-plugin-console.logger，
file：plugins / cordova-plugin-console / www / logger.js，
pluginId：cordova-plugin-console，
clobbers：[
cordova.logger
]
}，
{
id：cordova-plugin-console.console，
file：plugins /cordova-plugin-console/www/console-via-logger.js，
pluginId：cordova-plugin-console，
clobbers：[
conso le
]
}，
{
id：cordova-plugin-device.device，
file：plugins / cordova-plugin -device / www / device.js，
pluginId：cordova-plugin-device，
clobbers：[
device
]
}，
{
id：cordova-plugin-device.DeviceProxy，
file：plugins / cordova-plugin-device / src / windows / DeviceProxy.js ，
pluginId：cordova-plugin-device，
合并：[
]
}，
{
id：cordova-plugin-splashscreen.SplashScreen，
file：plugins / cordova-plugin-splashscreen / www / splashscreen.js，
pluginId： cordova-plugin-splashscreen，
clobbers：[
navigator.splashscreen
]
}，
{
id：cordova-plugin-splashscreen.SplashScreenProxy，
file：plugins / cordova-plugin-splashscreen / www / windows / SplashScreenProxy.js，
pluginId：cordova -plugin-splashscreen，
运行：true
}，
{
id：cordova-plugin-statusbar.statusbar，
file ：plugins / cordova-plugin-statusbar / www / statusbar.js，
pluginId：cordova-plugin-statusbar，
clobbers：[
窗口。 StatusBar
]
}，
{
id：cordova-plugin-statusbar.StatusBarProxy，
file：plugins / cordova-plugin -statusbar / src / windows / StatusBarProxy.js，
pluginId：cordova-plugin-statusbar，
运行：true
}，
{
id：ionic-plugin-keyboard.KeyboardProxy，
file：plugins / ionic-plugin-keyboard / src / windows / Ke yboardProxy.js，
pluginId：ionic-plugin-keyboard，
clobbers：[
cordova.plugins.Keyboard
]，
运行：true
}
];
module.exports.metadata =
// TOP OF METADATA
{
cordova-plugin-console：1.0.5，
cordova-plugin -device：1.1.4，
cordova-plugin-splashscreen：4.0.3，
cordova-plugin-statusbar：2.2.2，
cordova-plugin-whitelist：1.3.1，
ionic-plugin-keyboard：2.2.1
};
//元数据底部
}）;
现在，我注意到 module.exports.metadata中的每个插件还在 module.exports 中有一个条目，除了 cordova-plugin-whitelist ！
如果我为在VS中创建的Corvoda应用程序打开相同的文件，我会看到以下内容......
cordova.define（'cordova / plugin_list'，function（require，exports，module）{
module.exports = [];
module.exports.metadata =
// TOP OF METADATA
{
cordova-plugin-whitelist：1.2.2
};
//元数据底部
}） ;
因此白名单插件也没有其他内容
这里有什么东西不见了？这个白名单插件是不是可以正确安装？
我有类似的情况，我的ajax调用在TEST中工作正常，但当我搬到PROD时，他们会失败。
答案最终被追踪为我试图访问的服务器上缺少的中间证书。 TEST有证书，PROD没有。
我希望这有帮助。
I have attempted to ask this previously, buy got no real answers, and have now been struggling for over a month.
I just cannot get my ajax calls to work on an Ionic 3 Cordova application built for a Windows 10 UWP. They can access localhost, but not any outside connections.
The application works fine on both Android and iOS.
I am trying to test this locally on my dev machine. I use a certificate (bought) to sign the application, install this certificate, build the application for Windows, and am able to open up the built CordovaApp.Windows10_1.0.1.1_x86.appxupload, and then double click the embedded CordovaApp.Windows10_1.0.1.1_x86.appx file to install, which completes successfully. The install indicates the app need internet access.
In the config.xml, I have the following tags, as suggested elsewhere...
<allow-navigation href="*" />
<access origin="*" />
However, when I run, the http.get call just returns 0 with no other information. I can run in Visual Studio, and look at the returned error object, and get no further info, apart from this 0 return.
I have run fiddler, enabled the https decryption as explained here, but all I see in the response header is
HTTP/1.0 200 Connection Established
FiddlerGateway: Direct
StartTime: 13:44:21.686
Connection: close
The result in the main view actually shows 200, so I don't think this is showing me anything real.
I am at a complete loss. I have no where else to search. What could I be missing?
Should I be able to use external ajax on a Windows 10 machine, when I have sideloaded the application as here? I haven't tried from the store yet, as I don't want to upload until I know it works.
Any suggestions desperately welcomed. Surely someone has had an Ionic 3 application accessing external ajax working?
Thanks in advance for any help
[UPDATE 1]
If I run the application on the same machine, just using Ionic serve (so it just runs in the browser rather than hosted in the UWP), the ajax calls also work fine.
[UPDATE 2]
I have now created a Cordova application using the Visual Studio template, so taking all other frameworks out of the equation.
I used vanilla JavaScript to do my rest call...
document.addEventListener('deviceready', callUrl, false);
function callUrl() {
console.log('callUrl');
var xhr = new XMLHttpRequest();
xhr.open('GET', 'https://myserveraddress.com/myapp/testroute');
xhr.send(null);
xhr.onreadystatechange = function () {
var DONE = 4; // readyState 4 means the request is done.
var OK = 200; // status 200 is a successful return.
if (xhr.readyState === DONE) {
if (xhr.status === OK)
console.log(xhr.responseText);
} else {
console.log('Error: ' + xhr.status);
}
}
};
I run this in the debugger, and even here I get an error (status code of 0).
Another thing I noticed when I open up the build package and look at the cordova_plugins.js file..
My Ionic app has the following...
cordova.define('cordova/plugin_list', function(require, exports, module) {
module.exports = [
{
"id": "cordova-plugin-console.logger",
"file": "plugins/cordova-plugin-console/www/logger.js",
"pluginId": "cordova-plugin-console",
"clobbers": [
"cordova.logger"
]
},
{
"id": "cordova-plugin-console.console",
"file": "plugins/cordova-plugin-console/www/console-via-logger.js",
"pluginId": "cordova-plugin-console",
"clobbers": [
"console"
]
},
{
"id": "cordova-plugin-device.device",
"file": "plugins/cordova-plugin-device/www/device.js",
"pluginId": "cordova-plugin-device",
"clobbers": [
"device"
]
},
{
"id": "cordova-plugin-device.DeviceProxy",
"file": "plugins/cordova-plugin-device/src/windows/DeviceProxy.js",
"pluginId": "cordova-plugin-device",
"merges": [
""
]
},
{
"id": "cordova-plugin-splashscreen.SplashScreen",
"file": "plugins/cordova-plugin-splashscreen/www/splashscreen.js",
"pluginId": "cordova-plugin-splashscreen",
"clobbers": [
"navigator.splashscreen"
]
},
{
"id": "cordova-plugin-splashscreen.SplashScreenProxy",
"file": "plugins/cordova-plugin-splashscreen/www/windows/SplashScreenProxy.js",
"pluginId": "cordova-plugin-splashscreen",
"runs": true
},
{
"id": "cordova-plugin-statusbar.statusbar",
"file": "plugins/cordova-plugin-statusbar/www/statusbar.js",
"pluginId": "cordova-plugin-statusbar",
"clobbers": [
"window.StatusBar"
]
},
{
"id": "cordova-plugin-statusbar.StatusBarProxy",
"file": "plugins/cordova-plugin-statusbar/src/windows/StatusBarProxy.js",
"pluginId": "cordova-plugin-statusbar",
"runs": true
},
{
"id": "ionic-plugin-keyboard.KeyboardProxy",
"file": "plugins/ionic-plugin-keyboard/src/windows/KeyboardProxy.js",
"pluginId": "ionic-plugin-keyboard",
"clobbers": [
"cordova.plugins.Keyboard"
],
"runs": true
}
];
module.exports.metadata =
// TOP OF METADATA
{
"cordova-plugin-console": "1.0.5",
"cordova-plugin-device": "1.1.4",
"cordova-plugin-splashscreen": "4.0.3",
"cordova-plugin-statusbar": "2.2.2",
"cordova-plugin-whitelist": "1.3.1",
"ionic-plugin-keyboard": "2.2.1"
};
// BOTTOM OF METADATA
});
Now, I notice every plugin in the module.exports.metadata also has an entry in the module.exports EXCEPT for cordova-plugin-whitelist!
If I open the same file for the Corvoda application created in VS, I see the following...
cordova.define('cordova/plugin_list', function(require, exports, module) {
module.exports = [];
module.exports.metadata =
// TOP OF METADATA
{
"cordova-plugin-whitelist": "1.2.2"
};
// BOTTOM OF METADATA
});
So this has nothing else for the whitelist plugin as well
Could there be something missing here?? Could this white-list plugin not be installed correctly?
I had a similar situation where my ajax calls worked fine in TEST, but when I moved to PROD, they would fail.
The answer was finally tracked down as a missing intermediary certificate on the server I was trying to access. TEST had the cert, PROD did not.
I hope this helps.
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