HOW TO
The Developer edition of Web AppBuilder supports the option to set an outbound proxy. This may be useful if it is required to use a proxy to communicate with external URLs such as arcgis.com from the computer running Web AppBuilder.
The documentation related to this article covers the option of adding a proxy and port setting when running Web AppBuilder from the command line. Another option if using the Windows version of node.js, is to edit the startup.bat file that comes with the web app builder.
------>START "Web AppBuilder for ArcGIS" /B %nodefile% %serverjsfile% -proxy="http://USERNAME:PASSWORD@proxy:80"
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