Eu fiz os procedimento em um site que temos aqui porem ele linca algumas fontes e acho que devo estar colocando a referencia no arquivo manifest erro das fonts pois nao esta dando certo ERRO NO CONSOLE:
GET http://localhost/COESMANOVO/public_html/assets/css/main.css net::ERR_FAILED
(index):24 GET http://localhost/COESMANOVO/public_html/vendor/bootstrap/css/bootstrap.min.css net::ERR_FAILED
(index):27 GET http://localhost/COESMANOVO/public_html/vendor/font-awesome/css/font-awesome.min.css net::ERR_FAILED
(index):28 GET https://fonts.googleapis.com/css?family=Montserrat:400,700 net::ERR_FAILED
(index):29 GET https://fonts.googleapis.com/css?family=Kaushan+Script net::ERR_FAILED
(index):30 GET https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic,700italic net::ERR_FAILED
(index):31 GET https://fonts.googleapis.com/css?family=Roboto+Slab:400,100,300,700 net::ERR_FAILED
(index):32 GET https://fonts.googleapis.com/css?family=Montserrat:400,400i,700,700i|Open+Sans:300,300i,400,400i,700,700i net::ERR_FAILED
(index):33 GET https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css net::ERR_FAILED
COMO QUE EU COLOQUEI AS REFERENCIAS DOS CSS, JS E FONTES NO ARQUIVO MANIFEST :
CACHE MANIFEST
CACHE:
vendor/bootstrap/css/bootstrap.min.css
vendor/font-awesome/css/font-awesome.min.css
https://fonts.googleapis.com/css?family=Montserrat:400,700
https://fonts.googleapis.com/css?family=Kaushan+Script
https://fonts.googleapis.com/css?family=Droid+Serif:400,700,400italic,700italic
https://fonts.googleapis.com/css?family=Roboto+Slab:400,100,300,700
https://fonts.googleapis.com/css?family=Montserrat:400,400i,700,700i|Open+Sans:300,300i,400,400i,700,700i
https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css
assets/css/theme.css
css/agency.min.css
css/navbar.css
vendor/jquery/jquery.min.js
vendor/popper/popper.min.js
vendor/bootstrap/js/bootstrap.min.js
vendor/jquery-easing/jquery.easing.min.js
js/jqBootstrapValidation.js
js/contact_me.js
js/agency.min.js
//assets.pcrl.co/js/jstracker.min.js
css/footer.css
css/font-awesome.min.css
img/coesma.svg
img/portfolio/Multas.jpg
img/portfolio/sinalizacao.jpg
img/portfolio/municipalizacao.jpg
img/portfolio/vagas.jpg
img/portfolio/taxi.jpg
img/portfolio/mototaxi.jpg
img/portfolio/nit.jpg
img/portfolio/notificacao.jpg
img/portfolio/educacao.jpg
img/logos/1.jpg
img/logos/2.jpg
img/logos/3.jpg
img/logos/4.jpg
img/portfolio/01-full.jpg
img/portfolio/02-full.jpg
img/portfolio/03-full.jpg
img/portfolio/04-full.jpg
img/vagas.jpg
img/portfolio/06-full.jpg
img/portfolio/07-full.jpg
img/noti.jpg
img/portfolio/09-full.jpg
assets/img/coesma3.jpg
css/footer.css