Rich-Harris

Stuff I wish I'd known sooner about service workers

I recently had several days of extremely frustrating experiences with service workers. Here are a few things I've since learned which would have made my life much easier but which isn't particularly obvious from most of the blog posts and videos I've seen.

I'll add to this list over time – suggested additions welcome in the comments or via twitter.com/rich_harris.

Use Canary for development instead of Chrome stable

Chrome 51 has some pretty wild behaviour related to console.log in service workers. Canary doesn't, and it has a load of really good service worker related stuff in devtools.

MadeByMike

/*! 
* Highlight words in html - v0.0.1 - 2015-04-29
* http://madebymike.com.au
* Copyright (c) 2015 Mike Riethmuller; Licensed MIT 
*/

/*
* It turns out that annotating a phrase within HTML is exceptionally hard. I've done it so you don't have to.
* The function accepts a phrase (string), HTML (string), and optionally a classname (string)
* It returns the same HTML with <mark> elements surrounding the phrase

janogarcia

Email Coding Guidelines

Warning

These guidelines haven't been updated since 2016. Learn more…

Table of contents

• TL;DR
• Intro
• Layout

kany

SENDMAIL on MAC OSX Yosemite

http://www.garron.me/en/mac/postfix-relay-gmail-mac-os-x-local-smtp.html

1. Create a file to store our credentials:

sudo vim /etc/postfix/sasl_passwd

jordanmoore

		"css": {
			"abbreviations": {
				"mqm": "@media screen and (min-width:${1}) {\n\t|\n}",
				"mqx": "@media screen and (max-width:${1}) {\n\t|\n}"
			}
		}

georgestephanis

CSS OFF
Volume 3—September 2013

Positioning Relatives
In 1958, English pictorial photographer Henry Peach Robinson created the world's first photomontage by combining five different negatives to make one complete print of a young girl on her deathbed. “Fading Away”—Robinson's first and most famous composite photo—depicts a young girl dying of consumption and was controversial when it was exhibited, with many believing it was not a suitable subject for photography.

Box Model
The Barbie doll was invented in 1959 by Ruth Handler (co-founder of Mattel), whose own daughter was called Barbara. Barbie was introduced to the world at the American Toy Fair in New York City. Barbie's job was teenage fashion doll. The full name of the first doll was Barbie Millicent Roberts, from Willows, Wisconsin.

Staying afloat

klamping

Script to build URLs
	https://github.com/cgiffard/node-simplecrawler

Script to build CSS selector file
	https://github.com/caplin/SuperSelector
	http://selectorgadget.com/

Script to convert :hover, :focus, etc to .hover, .focus etc
	https://github.com/jacobrask/styledocco/blob/master/share/previews.js
	Apply for any selectors that match

PaulKinlan

(function() { 
  var CSSCriticalPath = function(w, d, opts) {
    var opt = opts || {};
    var css = {};
    var pushCSS = function(r) {
      if(!!css[r.selectorText] === false) css[r.selectorText] = {};
      var styles = r.style.cssText.split(/;(?![A-Za-z0-9])/);
      for(var i = 0; i < styles.length; i++) {
        if(!!styles[i] === false) continue;
        var pair = styles[i].split(": ");

jed

How to set up stress-free SSL on an OS X development machine

One of the best ways to reduce complexity (read: stress) in web development is to minimize the differences between your development and production environments. After being frustrated by attempts to unify the approach to SSL on my local machine and in production, I searched for a workflow that would make the protocol invisible to me between all environments.

Most workflows make the following compromises:

• Use HTTPS in production but HTTP locally. This is annoying because it makes the environments inconsistent, and the protocol choices leak up into the stack. For example, your web application needs to understand the underlying protocol when using the secure flag for cookies. If you don't get this right, your HTTP development server won't be able to read the cookies it writes, or worse, your HTTPS production server could pass sensitive cookies over an insecure connection.

• Use production SSL certificates locally. This is annoying

phamann

Lesson's learnt building the Guardian

Below is a collection of my favourite responses I gathered from Guardian engineers when asked the question: What have you learnt starting from scratch and building a mobile-first next generation web platform for the Guardian?

Daithi O Crualaoich

• Work with great people.
• Deploy like crazy. This means the team has to control the infrastructure as well as code.
• Design is not a service. Designers have to sit in the team.
• Infrastructure is intrinsically unreliable. Discard and replace is the robust strategy.
• Use your CDN for HTML too.
• Don't always do as you are told.