1:this file must be enconded in utf8
2:and its Content-Type must be equal to text/event-stream
3
4retry:500
5data: 1
6unknow: unknow
7
8event: other_event_name
9retry:500
10data: 1
11unknow: unknow
12
13event: click
14retry:500
15
16event: blur
17retry:500
18
19event:keypress
20retry:500
21
22
23