Security Restriction Error - Cordova - Windows Phone

[DeanB2015]

Using SystemJS v0.19.3 for TypeScript + Cordova project. When I run my builds against windows phone 8.1 or windows phone 10 (physical or emulator) I get a JavaScript runtime error: Unable to load dynamic content

Windows security model appears to prevent SystemJS from running. Specifically, the problem is with document.write('<script type="text/javascript" src="'+o+'system-polyfills.js"></script>')

There is a shim created to resolve this problem, but it doesn't fix it.: https://github.com/MsopenTech/winstore-jscompat

[guybedford]

@DeanB2015 this is the automatic loading SystemJS does when it needs to load the Promise and URL polyfills file at - https://github.com/systemjs/systemjs/blob/master/dist/system-polyfills.js. This is always needed in IE environments including Edge.

If you just include that file with a script tag manually before loading SystemJS it won't make that dynamic request anymore.

[DeanB2015]

@guybedford Adding <script src="system-polyfills.js"> before <script src="system.js"> fixes the problem. Tested on emulators and Windows 8 & Windows 10 devices.

Thanks for the help!

Added system-polyfills to platformOverrides.js works well too.

(function () {
// Append the safeHTML polyfill
var scriptElem = document.createElement('script');
scriptElem.setAttribute('src', 'scripts/winstore-jscompat.js');
var scriptElem2 = document.createElement('script');
scriptElem.setAttribute('src', 'scripts/system-polyfills.js');
if (document.body) {
    document.body.appendChild(scriptElem);
    document.body.appendChild(scriptElem2);
} else {
    document.head.appendChild(scriptElem);
    document.head.appendChild(scriptElem2);
}
}());