paolochiodi/htmlcompressor

A work in progress port of google's htmlcompressor.jar

htmlcompressor's Issues

Cached Pages don't get compressed

I am using actionpack-page_caching to cache static pages and the htmlcompressor as middleware. When I look at my Rails server's response source code in Chrome DevTools it is compressed but when I look at the source of my Page Cached file it is not compressed.

How would this best be fixed? Thanks.

NoMethodError (undefined method `compress' for Sass:Module):

I'm getting the following error only on production mode:

Completed 500 Internal Server Error in 15ms (Views: 0.6ms | ActiveRecord: 2.3ms)
F, [2015-02-02T10:21:13.342194 #17722] FATAL -- :
NoMethodError (undefined method compress' for Sass:Module): htmlcompressor (0.1.2) lib/htmlcompressor/compressor.rb:555:incompress_css_styles'
htmlcompressor (0.1.2) lib/htmlcompressor/compressor.rb:495:in block in process_style_blocks' htmlcompressor (0.1.2) lib/htmlcompressor/compressor.rb:494:inmap!'
htmlcompressor (0.1.2) lib/htmlcompressor/compressor.rb:494:in process_style_blocks' htmlcompressor (0.1.2) lib/htmlcompressor/compressor.rb:476:inprocess_preserved_blocks'
htmlcompressor (0.1.2) lib/htmlcompressor/compressor.rb:202:in compress' htmlcompressor (0.1.2) lib/htmlcompressor/rack.rb:45:incall'

Didn't see this been reported before, but is no one else seeing it?

Gem is slowing down the server by 3 seconds or so.

Folks,
I've used this Gem for around 6 months, and just discovered that it added ~3 seconds to the response time of my server. This is really bad. Please see this as a warning - if you think to try it - make sure you measure your overall response time of the server (whether if it's apache or else). I removed it completely and now the website is really fast.

The right solution should be else. Either doing the compression in a low level language, to add speed, or, better, doing the compression not in real-time. Something like assets pipeline for the views and partials.

remove_intertag_spaces default is inconsistent between Rack and standard object

In https://github.com/paolochiodi/htmlcompressor/blob/master/lib/htmlcompressor/compressor.rb, :remove_intertag_spaces => false but in https://github.com/paolochiodi/htmlcompressor/blob/master/lib/htmlcompressor/rack.rb, :remove_intertag_spaces => true.

This creates an inconsistency which isn't expected, nor explained in the readme.

regexp has invalid interval and '}' without escape

I'm using {:awestruct} and get the following warnings:

/var/lib/gems/1.8/gems/htmlcompressor-0.0.5/lib/htmlcompressor/compressor.rb:80: warning: regexp has invalid interval
/var/lib/gems/1.8/gems/htmlcompressor-0.0.5/lib/htmlcompressor/compressor.rb:80: warning: regexp has }' without escape /var/lib/gems/1.8/gems/htmlcompressor-0.0.5/lib/htmlcompressor/compressor.rb:80: warning: regexp has invalid interval /var/lib/gems/1.8/gems/htmlcompressor-0.0.5/lib/htmlcompressor/compressor.rb:80: warning: regexp has}' without escape

Line at fault in compressor.rb:

LINE_BREAK_PATTERN = Regexp.new("(?:\p{Blank}(\r?\n)\p{Blank})+")

Escaping the curly brackets certainly removes the warning but I'm not 100% if that's the correct thing to do.

Cheers,
Scott.

:simple_boolean_attributes and ng-disabled

When :simple_boolean_attributes is set to true, ng-disabled attribute would be screwed up. For example, consider this code:

<button ng-disabled="bar()">Foo</button>

After compression, it becomes:

<button ng-disabled"bar()">Foo</button>

Thanks.

NameError: uninitialized constant HtmlCompressor

Following this guide (https://remino.net/rails-html-css-js-gzip-compression/) I got an error:

NameError: uninitialized constant HtmlCompressor
remote: /tmp/build_bae5e5126f5adcb967c7086926599cf4/config/initializers/compression.rb:24:in `block in <top (required)>'

on Heroku.

Rails 4.2.1.

Why?

I have to install your Middleware? A gem?

remove_style_attributes searches for incorrect pattern

The pattern is looking for a type attribute of text/style. However, the common value is text/css

https://developer.mozilla.org/en-US/docs/Web/HTML/Element/style#Attributes

No CSS Compressor. Please set the :css_compressor option

My settings are as follows

require 'htmlcompressor'
Rails.application.configure do

  # Strip all comments from JavaScript files, even copyright notices.
  # By doing so, you are legally required to acknowledge
  # the use of the software somewhere in your Web site or app:
  uglifier = Uglifier.new output: { comments: :none }

  # To keep all comments instead or only keep copyright notices (the default):
  # uglifier = Uglifier.new output: { comments: :all }
  uglifier = Uglifier.new output: { comments: :copyright }

  config.assets.compile = true
  config.assets.debug = false

  config.assets.js_compressor = uglifier
  config.assets.css_compressor = :sass

  config.middleware.use Rack::Deflater
  config.middleware.insert_before ActionDispatch::Static, Rack::Deflater

  config.middleware.use HtmlCompressor::Rack,
    compress_css: true,
    css_compressor: :sass,
    compress_javascript: true,
    javascript_compressor: uglifier,
    preserve_line_breaks: false,
    remove_comments: true,
    remove_form_attributes: false,
    remove_http_protocol: false,
    remove_https_protocol: false,
    remove_input_attributes: true,
    remove_intertag_spaces: false,
    remove_javascript_protocol: true,
    remove_link_attributes: true,
    remove_multi_spaces: true,
    remove_quotes: true,
    remove_script_attributes: true,
    remove_style_attributes: true,
    simple_boolean_attributes: true,
    simple_doctype: false
end

But I am getting the following error No CSS Compressor. Please set the :css_compressor option

compressing js templates

Is there a way to compress .jst.eco files with this gem automatically? I've been using the gem happily for .html.erb files but js templates cause HTML whitespace issue for inline-block elements.

Properly remove the whitespace around <li> tags

tags leave one space before and after the

tag that results in classic html whitespace issue.

<ul> <li>Total Shares</li> <li> Other li tag </li> </ul>

seems like all the tags have a leading and trailing space.

The simple_boolean_attributes strips non-boolean attributes

Hi there.

I just noticed in an app that is using AngularJS, that middleman-minify-html (which relies on the htmlcompressor gem) strips some values:

• ng-disabled="compareDisabled" is transformed to ng-disabled
• also data-ng-disabled="compareDisabled" is transformed to data-ng-disabled

Seems to me that the simple_boolean_attributes option, when activated, strips this valid e.g. non-boolean attributes.
Maybe the BOOLEAN_ATTR_PATTERN is mismatching?

PS: Same applies probably to ng-selected, ng-checked and ng-readonly.

remove_http_protocol: true is not a sane default (anymore)

With the migration of many sites to https, this aggressive default breaks all outgoing http-links.
I would say this is not a sane default anymore and will break many pages.

HTML not minified on heroku

Hi

firstly thanks for the great work and i have used your gem in a production app on heroku

I set it up as per your instructions however when I ran the metrics code under page speed it keeps coming up with the html is not minified?

is there any setting i need to use while adding the middleware? thanks for your help

YUI compressor version outdated

Project depends on YUI version 0.9.6 (technically on any version that is >= 0.9.6 and <0.9.7 ;)). 0.9.6 is three years old and is broken on Windows platform due to popen4 dependency.

Please consider upgrading

Problems with remove_spaces_inside_tags()

In current version, remove_spaces_inside_tags() is always called and cannot be disabled by option.

And this compression causes corruption in <input> value.

<!-- before -->
<input value=" value = 5 ">

<!-- after -->
<input value=" value=5 ">

So. at least either of following improvements is necessary:

1. Create option to disable this compression
2. Exclude attribute values from this compression

With this config my site slow down a bit. You can say me why?

Hi guys,

If I use this config my site slow down a bit. You can say me why?

I followed this guide: https://remino.net/rails-html-css-js-gzip-compression/

# config/initializers/compression.rb

Rails.application.configure do
  # Use environment names or environment variables:
  # break unless Rails.env.production? 
  break unless ENV['ENABLE_COMPRESSION'] == '1'

  # Strip all comments from JavaScript files, even copyright notices.
  # By doing so, you are legally required to acknowledge
  # the use of the software somewhere in your Web site or app:
  uglifier = Uglifier.new output: { comments: :none }

  # To keep all comments instead or only keep copyright notices (the default):
  # uglifier = Uglifier.new output: { comments: :all }
  # uglifier = Uglifier.new output: { comments: :copyright }

  config.assets.compile = true
  config.assets.debug = false

  config.assets.js_compressor = uglifier
  config.assets.css_compressor = :sass

  config.middleware.use Rack::Deflater
  config.middleware.insert_before ActionDispatch::Static, Rack::Deflater

  config.middleware.use HtmlCompressor::Rack,
    compress_css: true,
    compress_javascript: true,
    css_compressor: Sass,
    enabled: true,
    javascript_compressor: uglifier,
    preserve_line_breaks: false,
    remove_comments: true,
    remove_form_attributes: false,
    remove_http_protocol: false,
    remove_https_protocol: false,
    remove_input_attributes: true,
    remove_intertag_spaces: false,
    remove_javascript_protocol: true,
    remove_link_attributes: true,
    remove_multi_spaces: true,
    remove_quotes: true,
    remove_script_attributes: true,
    remove_style_attributes: true,
    simple_boolean_attributes: true,
    simple_doctype: false
end

How do I disable compression for specific pages / view, etc?

CSS compression: final s being truncated for transition

The compressed output does not put the last s, thus making the css invalid for the browser

https://gist.github.com/GiboMac/aa5e8c572fbda03970bffad24a482af7 (stupid gist but
it should give you the idea)

Doesn't work together with Rack::Deflater

When I use in config both HtmlCompressor and Rack::Deflater - I get data stream error:

config.middleware.use HtmlCompressor::Rack
config.middleware.use Rack::Deflater

Warnings with Ruby 2.2.0

Hi paolochiodi,

thanks for your gem.

There are new warnings with ruby 2.2.0:

/Users/dmasur/.rvm/gems/ruby-2.2.0/gems/htmlcompressor-0.1.2/lib/htmlcompressor/compressor.rb:112: warning: duplicated key at line 132 ignored: :javascript_compressor
/Users/dmasur/.rvm/gems/ruby-2.2.0/gems/htmlcompressor-0.1.2/lib/htmlcompressor/compressor.rb:113: warning: duplicated key at line 133 ignored: :css_compressor

the warnings is pretty clear. you declared this twice. I don't know why, maybe for documentation, so i didn't open a pull request.

Can you take a look at it?