Rahul Gupta PezCoder

Profile	download (kb/s)	upload (kb/s)	latency (ms)
Native	0	0	0
GPRS	50	20	500
56K Dial-up	50	30	120
Mobile EDGE	240	200	840
2G Regular	250	50	300
2G Good	450	150	150
3G Slow	780	330	200

Two way iframe communication

The main difference between the two pages is the method of sending messages. Recieving messages is the same in both.

Send messages to iframe using iframeEl.contentWindow.postMessage Recieve messages using window.addEventListener('message')

	#!/bin/bash

	function die() {
	echo "${1}"
	exit 1
	}

	which printf > /dev/null 2>&1 \|\| die "Shell integration requires the printf binary to be in your path."
	which sed > /dev/null 2>&1 \|\| die "Shell integration requires the sed binary to be in your path."

	# Steps to build and install tmux from source.
	# Takes < 25 seconds on EC2 env [even on a low-end config instance].

	VERSION=2.7
	sudo yum -y remove tmux
	sudo yum -y install wget tar libevent-devel ncurses-devel
	wget https://github.com/tmux/tmux/releases/download/${VERSION}/tmux-${VERSION}.tar.gz
	tar xzf tmux-${VERSION}.tar.gz
	rm -f tmux-${VERSION}.tar.gz
	cd tmux-${VERSION}

	// Simulate a call to Dropbox or other service that can
	// return an image as an ArrayBuffer.
	var xhr = new XMLHttpRequest();

	// Use JSFiddle logo as a sample image to avoid complicating
	// this example with cross-domain issues.
	xhr.open( "GET", "http://fiddle.jshell.net/img/logo.png", true );

	// Ask for the result as an ArrayBuffer.
	xhr.responseType = "arraybuffer";