'Upgrade Required'？ - Githubissues

I have the following Gulpfile (coffee):

b = watchify browserify
  cache: {}
  packageCache: {}
  entries: ['./src/cjsx/main.cjsx']
  extensions: ['.cjsx']
  debug: true
  transform: ['coffee-reactify', 'browserify-css']
  plugin: [lrload]

b.on 'update', -> gulp.start 'default'
b.on 'log', gutil.log

And the following output:

Steve@stevefan$ gulp
[21:10:53] Requiring external module coffee-script/register
[13:10:55.305] LiveReactload :: Reload server up and listening in port 4474...
[21:10:55] Using ~~REDACTED~~/Gulpfile.coffee
[21:10:55] Starting 'clean-dist'...
[21:10:55] Finished 'clean-dist' after 25 ms
[21:10:55] Starting 'clean'...
[21:10:55] Finished 'clean' after 34 μs
[21:10:55] Starting 'default'...
[21:11:02] 1657013 bytes written (6.80 seconds)

But when I access localhost:4474 it only prints a mere string on my browser, Chrome:

Upgrade Required

There is nothing in my Chrome devconsole. However, I did saw some error messages building native module(s) during the installation of LiveReactLoad:

14 errors generated.
make: *** [Release/obj.target/validation/src/validation.o] Error 1

I'm using a MacBook & macOS Sierra & Chrome 53 & LLVM 7.3.0 with XCode 7.3.1.

Speaking of 'Upgrade', there do have an 'upgrade' from HTTP request to WebSocket. Maybe that will be the problem? I'm not sure of that.

milankinen / livereactload

'Upgrade Required'？ #130