Ratel mutation input textbox does not have syntax highlighting and autoindent

Everything seems fine. And there is auto-completion of functions, but not predicates + everything collapses to the left (all braces, etc). However, there was an error, but I’m not sure if it affects:

Editor: Error while fetching schema t: invalid username or password
    t errors.js:25
    t errors.js:43
    callAPI clientStub.js:397
    s clientStub.js:44
    s clientStub.js:25
    o clientStub.js:16
    promise callback*c clientStub.js:18
    o clientStub.js:16
    promise callback*c clientStub.js:18
    i clientStub.js:19
    i clientStub.js:15
    callAPI clientStub.js:365
    login clientStub.js:285
    s clientStub.js:44
    s clientStub.js:25
    i clientStub.js:19
    i clientStub.js:15
    login clientStub.js:263
    e Editor.js:65
    u runtime.js:63
    _invoke runtime.js:293
    w runtime.js:118

I used VM (hosted on Azure) with the following set up configuration:

dgraph zero --my=localhost:5080
dgraph alpha --my=localhost:7080 --zero=localhost:5080 --whitelist 109.251.100.146
dgraph alpha --my=localhost:7081 --zero=localhost:5080 -o=1 -p ./backup/p -w ./backup/w
dgraph-ratel

It works fine but for auto-completion of predicates…