Microsoft Edge/IE do not support SSE (server sent events) resulting in frozen dashboards

[dnsmichi]

This issue cannot be solved by us, this is for information purposes only.

Thanks @LordHepipud for the research.

Current Behavior

Updates are not processed in the browser, the dashboard looks "frozen".

If you enable the browser dev console, you'll see why.

SCRIPT5009: 'EventSource' is not defined

Possible Solution

Microsoft needs to implement SSE in Edge and IE. Feature request: https://wpdev.uservoice.com/forums/257854-project-spartan-platform/suggestions/6263825-server-sent-events-eventsource

Windows 10 and Chrome/Firefox do work.

Technical Background

Dashing runs as Sinatra app inside Thin which uses EventMachine to basically do http long polling, or likewise, server sent events.

This technology exists sind 2012: http://tenderlovemaking.com/2012/07/30/is-it-live.html

[dnsmichi]

This won't be solved with a different server (thin replaced with puma for example, as described in #47).

Shopify/dashing#677 (comment)