[英]Set Charset to UTF-8 on html pages for Middleman blog site
我在Heroku( http://tomgillard.herokuapp.com )上托管了一個Middleman博客,並一直在嘗試根據Google的PageSpeed建議對其進行優化。 一個建議是,我在網站的HTML頁面上提供一個字符集。
HTML頁面在<head>中包含html5 <meta charset =“ utf-8”>,但這似乎還不夠,我想我可以在服務器端進行設置。
這是我的config.ru
require 'rack/contrib'
# Modified version of TryStatic, from rack-contrib
# https://github.com/rack/rack-contrib/blob/master/lib/rack/contrib/try_static.rb
# Serve static files under a `build` directory:
# - `/` will try to serve your `build/index.html` file
# - `/foo` will try to serve `build/foo` or `build/foo.html` in that order
# - missing files will try to serve build/404.html or a tiny default 404 page
module Rack
class TryStatic
def initialize(app, options)
@app = app
@try = ['', *options.delete(:try)]
@static = ::Rack::Static.new(lambda { [404, {}, []] }, options)
end
def call(env)
orig_path = env['PATH_INFO']
found = nil
@try.each do |path|
resp = @static.call(env.merge!({'PATH_INFO' => orig_path + path}))
break if 404 != resp[0] && found = resp
end
found or @app.call(env.merge!('PATH_INFO' => orig_path))
end
end
end
# Serve GZip files to browsers that support them
use Rack::Deflater
# Custom HTTP Headers
use Rack::ResponseHeaders do |headers|
headers['Charset'] = 'UTF-8'
end
#Custom Cache Expiry
use Rack::StaticCache, :urls => ["/img", "/css", "/js", "/fonts"], :root => "build"
# Attempt to serve static HTML file
use Rack::TryStatic, :root => "build", :urls => %w[/], :try => ['.html', 'index.html', '/index.html']
# Serve 404 messages:
run lambda{ |env|
not_found_page = File.expand_path("../build/404.html", __FILE__)
if File.exist?(not_found_page)
[ 404, { 'Content-Type' => 'text/html', 'Charset' => 'UTF-8' }, [File.read(not_found_page)] ]
else
[ 404, { 'Content-Type' => 'text/html', 'Charset' => 'UTF-8' }, ['404 - page not found'] ]
end
}
我以為可以使用來自Rack :: ResponseHeaders的rack-contrib,但我認為我沒有正確使用它。
# Custom HTTP Headers
use Rack::ResponseHeaders do |headers|
headers['Charset'] = 'UTF-8'
end
就像我說的那樣,我搜尋了很多東西。 咨詢過的文檔(機架,heroku),問題,博客文章,github,您都可以命名。
非常感謝您提供任何幫助。
干杯湯姆
我有一個類似的問題,想優化我的網站。 您只需要手動設置Content-Type
標頭。
這是我完整的config.ru
,它在Google PageSpeed上達到98/100(它抱怨沒有在頁面中嵌入我的CSS):
# encoding: utf-8
ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../Gemfile', __FILE__)
require 'bundler/setup' if File.exist?(ENV['BUNDLE_GEMFILE'])
require 'rack/contrib'
require File.expand_path("../rack_try_static", __FILE__)
use Rack::ResponseHeaders do |headers|
headers['Content-Type'] = 'text/html; charset=utf-8' if headers['Content-Type'] == 'text/html'
end
use Rack::Deflater
use Rack::StaticCache, urls: ["/images", "/stylesheets", "/javascripts", "/fonts"], root: "build"
use ::Rack::TryStatic,
root: "build",
urls: ["/"],
try: [".html", "index.html", "/index.html"]
run lambda { [404, {"Content-Type" => "text/plain"}, ["File not found!"]] }
您還需要添加rack-contrib
您Gemfile
為Rack::StaticCache
:
gem 'rack-contrib'
您還需要我的rack_try_static 。
編輯 :請注意, Rack::StaticCache
的當前實現會刪除Last-Modified
和Etag
標頭,並且會在以-后跟數字結尾的資產上中斷。 我為這兩個( 83和84 )都開放了PR。
由於我已將博客從heroku移至github頁面,因此不再適用。 感謝您的光臨。
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