Place this in your rack stack and all caching will be gone.

Rack middleware implementing an IP whitelist of HTTP verbs.

Rack::Downtime provides a variety of ways to easily trigger and display planned maintenance notifications to users while a site is still up. Various strategies are provided that will work with sites of all sizes.

Rack middleware to add chuck norris fact headers

Rack::Embed embeds small images via the data-url (base64) if the browser supports it.

A simple rack middleware to slowdown response

Rack middleware for ensuring only proper hosts get passed to your application

Extends rack-test to make working with EventMachine easier.

rack application (not a middleware) serves contents in a git repository directly

Conditional wrapper for Rack middleware. This is a port of Plack::Middleware::Conditional.

A Rack middleware/app for re-writing a simple URL into a Google analytics-tracked URL for ad campaigns

Rack middleware to check HTTP request methods and reject ones you don't want

Rack application that displays current Git commit information.

Serve Webfinger responses easily from Rack

Rack middleware that will pretty print JSON response when pretty=1 is passed as a web parameter

Simple Rack middleware for setting the locale.country via GeoIP using the MaxMind GeoIP database, and setting the locale.languages based on the HTTP_ACCEPT_LANGUAGE header.

Rack middleware to process Web Monetization API states

A collection of rack middlewares helping you add JSONP to your app

Rack middleware for processing JSON requests and responses using the 'oj' gem.

This is a Rack middleware wrapper for gsub. You can replace text on your web page without worrying about accidentally modifying the HTML tags themselves.