Content-Length header is wrong

Question

Closed this issue 12 years ago · 5 comments

I'm getting an error from Rack::Lint:

ERROR Rack::Lint::LintError: Content-Length header was 599, but should be 261

My simple rackup file contains:

require 'rubygems'
require 'bundler/setup'
require 'rack-livereload'

use Rack::LiveReload
run Rack::Directory.new('.')

What I'm doing wrong? Do I misunderstand the middleware concept?

Answer 1 · 2012-03-01T14:11:43.000Z

Do you get the same error with a basic Rack app, like say:

run lambda { |env| [ 200, {}, [ 'hi' ] ] }

Answer 2 · 2012-03-02T08:58:02.000Z

Your sample misses a content type. The following works:

use Rack::LiveReload
run lambda { |env| [ 200, { 'Content-Type' => 'text/html' }, [ '<html><head></head><body>hi</body></html>' ] ] }

I (think that I) need Rack::Directory for reloading my static HTML files for a live HTML course. Other suggestions?

BTW: I think the difference in content length results from adding the js script tags.

Answer 3 · 2012-03-02T11:05:23.000Z

Same problem here, I get the following message in the web server log:

!!Unexpected error while processing request: Content-Length header was 2175, but should be 1837

Answer 4 · 2012-03-02T14:27:59.000Z

I was making a bad assumption about the returns from Rack apps, and that is now fixed. Take it for a spin.

Answer 5 · 2012-03-05T08:07:54.000Z

Jep, works perfectly!