在服务器端使用事件源-polyfill（node.js）

Question

Inorder to support event streams in IE and other mobile browsers i'm attempting to use event-source-polyfill ( https://www.npmjs.com/package/event-source-polyfill ).

Can anyone please provide an example on how it could be used on a node service (or) it is just adding it via npm install and then we should be all set? From the documentation it looks like there are some server side requirements ( https://www.npmjs.com/package/event-source-polyfill#server-side-requirements ) out of which the,

1. Last-Event-ID is a query parameter that needs to be sent in the api end point something like /api/eventstream?lastEventId=0
2. 2 KB padding for IE which as mentioned in the example we can have this (response.write(":" + Array(2049).join(" ") + "\\n");) on the node part
3. You need to send "comment" messages each 15-30 seconds, these messages will be used as heartbeat to detect disconnects (what should be done for this one?)

So after npm install event-source-polyfill and then completing the steps from 1,2 and 3 it would eventually work in IE is that a fair understanding.

Answer 1

您还需要将脚本添加到HTML：

 <script src="eventsource.js"></script>