README.md

prerender-clear-local-storage

#Summary Plugin for Prerender that clears PhantomJS's local storage before each request

npm install prerender-clear-local-storage

#Getting started ##Set up a custom prerender server Follow the instructions to create a custom prerender server

Create a custom prerender server

##Require the plugin

var clearLocalStoragePlugin = require('prerender-clear-local-storage');

##Use the plugin

server.use(clearLocalStoragePlugin(server));

##Configuration This plugin uses the env variable PHANTOM_LOCAL_STORAGE_PATH to determine what localstorage files to clear.

This defaults to ./LocalStorage/.localstorage* which unfortunately is useless since I cannot get PhantomJS's "--local-storage-path" to work.

You will need to set this to be the location of the PhantomJS .localstorage files on your machine. See Phantom Local Storage Locations for some suggestions.

Additionally this variable is used as a glob path so you will need to provide the wildcard of your choice. I recommend using *.localstorage so that only .localstorage files are removed.

e.g.

PHANTOM_LOCAL_STORAGE_PATH = /Users/user.name//Library/Application Support/Ofi Labs/PhantomJS/*.localstorage

You can set this variable via the commandline as shown below or if you use grunt checkout grunt-env.

PHANTOM_LOCAL_STORAGE_PATH=/path/to/phantom/localstorage/*.localstorage node server.js

##Phantom Local Storage Locations ###OSX

/Users/user.name//Library/Application Support/Ofi Labs/PhantomJS/

###Windows

C:\Documents and Settings\user\Local Settings\Application Data\Ofi Labs\PhantomJS

#Server Code example (server.js)

var prerender = require('prerender');
var clearLocalStoragePlugin = require('prerender-clear-local-storage');

var server = prerender({
  workers: process.env.PHANTOM_CLUSTER_NUM_WORKERS || 1,
  iterations: process.env.PHANTOM_WORKER_ITERATIONS || 10,
  phantomBasePort: process.env.PHANTOM_CLUSTER_BASE_PORT || 12300,
  messageTimeout: process.env.PHANTOM_CLUSTER_MESSAGE_TIMEOUT,
});

server.use(prerender.blacklist());
server.use(prerender.removeScriptTags());
server.use(prerender.httpHeaders());
server.use(clearLocalStoragePlugin(server));

server.start();