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Problem

window.open behaves differently inside the following iOS browsers:

• Mobile Safari - window.open opens a new tab
• Safari View Controller - window.open redirects current page

Consequences

• Non-standard: Safari View Controller adds a non-standard step to the WHATWG spec, by overriding the desired target browser context to "_self", rather than going through the standard sandboxing for restricting tab navigation, or simply returning null as described at the end of item 4.

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Reading Clojure in 5 minutes

Syntax

There is literal data:

; number
1.23

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A :flag-tx: emoji for Slack

emoji extracted from: https://www.buzzfeed.com/nathanwpyle/20-emojis-every-texan-wish-existed

128x128 png: http://i.imgur.com/J7aWlvq.png

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/* in http://example.com/viewport.css */
/* 'elementID' must be changed to your desired isolated element ID */
html.mvc__a.mvc__lot.mvc__of.mvc__classes.mvc__to.mvc__increase.mvc__the.mvc__odds.mvc__of.mvc__winning.mvc__specificity,
html.mvc__a.mvc__lot.mvc__of.mvc__classes.mvc__to.mvc__increase.mvc__the.mvc__odds.mvc__of.mvc__winning.mvc__specificity > body {
  background: #fff;
  width: auto;
  min-width: inherit;
  max-width: inherit;
  height: auto;
  min-height: inherit;

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AuthenticationService.prototype.applyStyles = function (iframe) {
  iframe.style.position = 'fixed';
  iframe.style.top = '0';
  iframe.style.left = '0';
  iframe.style.height = '100%';
  iframe.style.width = '100%';
  iframe.setAttribute('frameborder', '0');
 iframe.setAttribute('allowTransparency', 'true');

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Shorthand anonymous functions

JS allows you to create shorthand anonymous functions, but it gets confused if you're trying to return an Object.

(a,b) => a+b
(a,b) => {sum: a+b}  // cannot return an Object like this, because curlies mean body
(a,b) => { let sum = a+b; return sum; }