MDN’s new design is in Beta! A sneak peek: https://blog.mozilla.org/opendesign/mdns-new-design-beta/

Enable Error Console with -jsconsole to debug your app inside the WebApp runtime.

To debug problems when your app is running inside the WebApp runtime, enable the Error Console and run the app from the command line:

$ ~/.http\;alcacoop.github.com/webapprt-srt -jsconsole

See also

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 Contributors to this page: JuliaM, kohei.yoshino, kscarfone, Sheppy, madarche
 Last updated by: JuliaM,