This is how to enable enter from remote client app.

1. Open the couch db web dashboard which is localhost:5984/_utils/index.html maybe
2. Enter the setting page
3. Fix severial part

Section	Option	Value
chttpd	bind_address	0.0.0.0

4. Accept Incoming port 5984, TCP

This is how to enable cors request from client app.

1. Open the couch db web dashboard which is localhost:5984/_utils/index.html maybe
2. Enter the setting page
3. Fix severial part

Section	Option	Value
cors	credentials	true
	headers	x-requested-with, accept, authorization, content-type, origin, referer, if-match
	methods	GET, PUT, POST, HEAD, DELETE, OPTIONS
	origins	[WHAT YOU WANT ENABLE ORIGIN]
httpd	enable_cors	true

4. Run cmd as Admin
5. Restart CouchDB process

net.exe stop "Apache CouchDB" && net.exe start "Apache CouchDB"