Why my alfresco community 5.2 page contains these CDN resources ?

[chdeul]

My alfresco page, when I look at the source in my browser contains : 
 
  <!-- NOTE: Using CDN resources whilst this extension is in the prototype phase -->   <script src="https://cdnjs.cloudflare.com/ajax/libs/es6-shim/0.35.0/es6-shim.min.js"></script>   <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.26/system-polyfills.js"></script>   <script src="https://unpkg.com/angular2@2.0.0-beta.16/es6/dev/src/testing/shims_for_IE.js"></script>        <script src="https://code.angularjs.org/2.0.0-beta.16/angular2-polyfills.js"></script>   <script src="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.26/system.js"></script>   <script src="https://unpkg.com/typescript@1.8.10/lib/typescript.js"></script>   <script src="https://code.angularjs.org/2.0.0-beta.16/Rx.js"></script>   <script src="https://code.angularjs.org/2.0.0-beta.16/angular2.dev.js"></script>   <script>      System.config({         transpiler: 'typescript',          typescriptOptions: { emitDecoratorMetadata: true }       });    </script>

Just after the first installation, it does not appear, but after some random changes of configuration, it appears and not disappears, even I revert config, purge tomcat work and temp, cache of browser, ...  :  Then, I cannot use this alfresco instance on my not net-connected server !

[afaust]

It would be good to know what your random changes were.... Apparently you have activated some experimental extension that includes those dependencies. So ideally, just undo your random changes.