HTTP parse error, malformed request - Ruby on Rail

问题:

I see the following error in Terminal when attempting to run a Ruby on Rails app.

HTTP parse error, malformed request (): #<Puma::HttpParserError: Invalid HTTP format, parsing fails.>
2017-03-12 13:10:02 -0400: ENV: {"rack.version"=>[1, 3], "rack.errors"=>#<IO:<STDERR>>, "rack.multithread"=>true, "rack.multiprocess"=>false, "rack.run_once"=>false, "SCRIPT_NAME"=>"", "QUERY_STRING"=>"", "SERVER_PROTOCOL"=>"HTTP/1.1", "SERVER_SOFTWARE"=>"puma 3.4.0 Owl Bowl Brawl", "GATEWAY_INTERFACE"=>"CGI/1.2"}

The browser error:

This site can’t provide a secure connection. localhost sent an invalid response. ERR_SSL_PROTOCOL_ERROR*

I have tried the following

• Clearing browser cache and restarting
• Reverting back to an old commit in GIT that was working at the time
• Restarting terminal
• Running a different rails app that was functional

回答1:

Here are some possible solutions.

1. Make sure you are connecting through http://localhost:3000 and not https://localhost:3000.

2. If the browser redirects to HTTPS and it's Google Chrome, try this solution that addresses an HSTS problem: https://stackoverflow.com/a/28586593

3. Make sure you do not have the production environment (if that's what you're serving) forcing HTTPS. If that's the problem, comment this out or change true to false:

   config/environments/production.rb

   # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
   config.force_ssl = true
   

回答2:

seems like you are trying to run HTTPS on your local. You need to have a TLS toolkit (like openSSL) installed on your local. OPENSSL for example.

after you made sure of that, and if still not working, maybe you can find you're answer in the next Github issue. Seems like a bug with Puma gem. GITHUB ISSUE TALK

回答3:

For those reading this in the future, consider the following:

1. Did you change your server in your Gemfile. e.g. from Puma to Thin?
2. Have you set up an SSL certificate?
3. Are you starting your webserver with SSL certificate flags?
4. Is SSL turned on in your development/production environment - and what environment are you invoking?

If you are ok with turning off SSL in your development environment you can do so by going to:

config/environments/development.rb and configuring:

config.force_ssl = false

Here is some code that works for me, using puma, that invokes SSL certification (locally). I have created my certificates and have dumped it in the relevant location:

rails s -b 'ssl://localhost:3000?key=./.ssl/localhost.key&cert=./.ssl/localhost.crt'

When I want to run it in a production environment from my PC I using the following:

rails s -b 'ssl://localhost:3000?key=./.ssl/localhost.key&cert=./.ssl/localhost.crt' -e production

HTH