sketchpunk/WebCom.js

## _test.html
<!DOCTYPE html>
<html lang="en">
<head>
	<title>WebComponents IE11</title>

	<script src="custom-elements.min.js"></script>
	<script src="custom-events.js"></script>
	<script src="promise.min.js"></script>
	<script src="WebCom.js"></script>

	<style>
		html, body{ height:100%; width:100%; padding:0px; margin:0px; }
		.PageLayout{ display:flex; flex-direction:column; width:100vw; height:100vh; }
		.PageLayout > header { display:flex; flex-direction:column; border:1px solid red; margin:10px;}
		.PageLayout > main{ flex:1; display:flex; flex-direction:row; align-items:stretch; border:1px solid blue; margin:10px; }
		.PageLayout > footer{ border:1px solid red; margin:10px; }
	</style>
</head>
<body>

<page-layout title="Title from Attribute">
	<footer-text>Custom Sub Tag for the footer</footer-text>
	<div slot="pg_content">
		Div appended moved to the Layout Main tag.<br><br>
		<a href="javascript:gPage.dispatch('woot', 'boo');">Custom Event Test</a>
	</div>
</page-layout>


<script>
var gPage;
window.addEventListener( "load", function(){
	gPage = document.getElementsByTagName("page-layout")[0];

	gPage.on( "woot", function(e){
		alert("Woot Event: " + e.detail );
	});
});


//#####################################################################################
// SUB WEB COMPONENT TEST

	function FooterText(){
		var self = WebCom.instance( FooterText, this );
		self.text = "";
		return self;
	} WebCom.init( FooterText );

	FooterText.prototype.connectedCallback = function(){
		this.text		= this.innerText;
		this.innerHTML	= "";
	}

	window.customElements.define( "footer-text", FooterText );


//#####################################################################################
// PAGE LAYOUT WEB COMPONENT

	function PageLayout(){
		var self = WebCom.instance( PageLayout, this );

		return self;
	} WebCom.init( PageLayout );


	////////////////////////////////////////////////////////
	// Web Component Methods
	////////////////////////////////////////////////////////
		PageLayout.prototype.disconnnectedCallback = function(){ console.log("disconnected"); }
		PageLayout.prototype.connectedCallback = function(){
			WebCom.append_template( this, PageLayout.Template );

			//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
			// Slot Injection
			var i, s, ss, sname, slots = this.querySelectorAll("*[slot]");
			for( i=0; i < slots.length; i++ ){
				if( !slots[i].hasAttribute("slot") ) continue;

				elm		= slots[i];
				sname	= elm.getAttribute("slot");
				slot	= this.querySelector( "*[name="+sname+"]" );

				if( !slot ) continue;

				if( slot.tagName == "SLOT" )	slot.parentNode.replaceChild( elm, slot );
				else 							slot.appendChild( elm );
			}

			//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
			// Attribute Handling
			if( this.hasAttribute("title") ){
				elm = this.querySelector( "header" );
				elm.innerHTML = this.getAttribute("title");
			}

			//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
			// Handle Sub Tags - Has to be handled in a promise since sub tags load later.
			var self = this;
			this.ready_promise = customElements.whenDefined('footer-text').then(function(){
				var foot_txt	= self.querySelector("footer-text"),
					footer		= self.querySelector( "footer" );
				footer.innerHTML = foot_txt.text;
			});
		}

	////////////////////////////////////////////////////////
	// Custom Events
	////////////////////////////////////////////////////////
		PageLayout.prototype.on = function( name, func ){ this.addEventListener( name, func ); return this; }
		PageLayout.prototype.dispatch = function( name, detail ){
			this.dispatchEvent( new window.CustomEvent( name, { detail:detail, bubbles:false, cancelable:true, composed:false } ) );
		}

	////////////////////////////////////////////////////////
	// TEMPLATE
	////////////////////////////////////////////////////////
		PageLayout.Template = document.createElement("template");
		PageLayout.Template.innerHTML = "<div class=\"PageLayout\">\n\t\t<header>\n\n\t\t</header>\n\t\t<main name=\"pg_content\">\n\n\t\t</main>\n\t\t\n\t\t<footer>\n\t\t</footer>\n</div>";

		/*
		https://babeljs.io/repl/
		`<div class="PageLayout">
			<header></header>
			<main name="pg_content"></main>
			<footer></footer>
		</div>`;
		*/

		window.customElements.define( "page-layout", PageLayout );
</script>

</body>
</html>

## custom-elements.min.js
(function(){
/*

 Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
 This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
 The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
 The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
 Code distributed by Google as part of the polymer project is also
 subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
*/
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ia=window.Element.prototype.append,ja=window.Element.prototype.before,ka=window.Element.prototype.after,la=window.Element.prototype.replaceWith,ma=window.Element.prototype.remove,na=window.HTMLElement,H=Object.getOwnPropertyDescriptor(window.HTMLElement.prototype,"innerHTML"),oa=window.HTMLElement.prototype.insertAdjacentElement,pa=window.HTMLElement.prototype.insertAdjacentHTML;var qa=new Set;"annotation-xml color-profile font-face font-face-src font-face-uri font-face-format font-face-name missing-glyph".split(" ").forEach(function(a){return qa.add(a)});function ra(a){var b=qa.has(a);a=/^[a-z][.0-9_a-z]*-[\-.0-9_a-z]*$/.test(a);return!b&&a}var sa=document.contains?document.contains.bind(document):document.documentElement.contains.bind(document.documentElement);
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d.nextSibling)d.nodeType!==Node.COMMENT_NODE&&f.push(d.textContent);return f.join("")},set:function(f){for(;this.firstChild;)u.call(this,this.firstChild);null!=f&&""!==f&&r.call(this,document.createTextNode(f))}})})};function Ha(a){function b(f){return function(d){for(var e=[],g=0;g<arguments.length;++g)e[g]=arguments[g];g=[];for(var h=[],k=0;k<e.length;k++){var l=e[k];l instanceof Element&&I(l)&&h.push(l);if(l instanceof DocumentFragment)for(l=l.firstChild;l;l=l.nextSibling)g.push(l);else g.push(l)}f.apply(this,e);for(e=0;e<h.length;e++)Y(a,h[e]);if(I(this))for(e=0;e<g.length;e++)h=g[e],h instanceof Element&&X(a,h)}}var c=Element.prototype;void 0!==ja&&M(c,"before",b(ja));void 0!==ka&&M(c,"after",b(ka));void 0!==
la&&M(c,"replaceWith",function(f){for(var d=[],e=0;e<arguments.length;++e)d[e]=arguments[e];e=[];for(var g=[],h=0;h<d.length;h++){var k=d[h];k instanceof Element&&I(k)&&g.push(k);if(k instanceof DocumentFragment)for(k=k.firstChild;k;k=k.nextSibling)e.push(k);else e.push(k)}h=I(this);la.apply(this,d);for(d=0;d<g.length;d++)Y(a,g[d]);if(h)for(Y(a,this),d=0;d<e.length;d++)g=e[d],g instanceof Element&&X(a,g)});void 0!==ma&&M(c,"remove",function(){var f=I(this);ma.call(this);f&&Y(a,this)})};function Ia(a){function b(d,e){Object.defineProperty(d,"innerHTML",{enumerable:e.enumerable,configurable:!0,get:e.get,set:function(g){var h=this,k=void 0;I(this)&&(k=[],U(a,this,function(w){w!==h&&k.push(w)}));e.set.call(this,g);if(k)for(var l=0;l<k.length;l++){var m=k[l];1===m.__CE_state&&a.disconnectedCallback(m)}this.ownerDocument.__CE_registry?N(a,this):V(a,this);return g}})}function c(d,e){M(d,"insertAdjacentElement",function(g,h){var k=I(h);g=e.call(this,g,h);k&&Y(a,h);I(g)&&X(a,h);return g})}
function f(d,e){function g(h,k){for(var l=[];h!==k;h=h.nextSibling)l.push(h);for(k=0;k<l.length;k++)N(a,l[k])}M(d,"insertAdjacentHTML",function(h,k){h=h.toLowerCase();if("beforebegin"===h){var l=this.previousSibling;e.call(this,h,k);g(l||this.parentNode.firstChild,this)}else if("afterbegin"===h)l=this.firstChild,e.call(this,h,k),g(this.firstChild,l);else if("beforeend"===h)l=this.lastChild,e.call(this,h,k),g(l||this.firstChild,null);else if("afterend"===h)l=this.nextSibling,e.call(this,h,k),g(this.nextSibling,
l);else throw new SyntaxError("The value provided ("+String(h)+") is not one of 'beforebegin', 'afterbegin', 'beforeend', or 'afterend'.");})}y&&M(Element.prototype,"attachShadow",function(d){d=y.call(this,d);if(a.a&&!d.__CE_patched){d.__CE_patched=!0;for(var e=0;e<a.b.length;e++)a.b[e](d)}return this.__CE_shadowRoot=d});z&&z.get?b(Element.prototype,z):H&&H.get?b(HTMLElement.prototype,H):Ba(a,function(d){b(d,{enumerable:!0,configurable:!0,get:function(){return q.call(this,!0).innerHTML},set:function(e){var g=
"template"===this.localName,h=g?this.content:this,k=p.call(document,this.namespaceURI,this.localName);for(k.innerHTML=e;0<h.childNodes.length;)u.call(h,h.childNodes[0]);for(e=g?k.content:k;0<e.childNodes.length;)r.call(h,e.childNodes[0])}})});M(Element.prototype,"setAttribute",function(d,e){if(1!==this.__CE_state)return B.call(this,d,e);var g=A.call(this,d);B.call(this,d,e);e=A.call(this,d);a.attributeChangedCallback(this,d,g,e,null)});M(Element.prototype,"setAttributeNS",function(d,e,g){if(1!==this.__CE_state)return E.call(this,
d,e,g);var h=D.call(this,d,e);E.call(this,d,e,g);g=D.call(this,d,e);a.attributeChangedCallback(this,e,h,g,d)});M(Element.prototype,"removeAttribute",function(d){if(1!==this.__CE_state)return C.call(this,d);var e=A.call(this,d);C.call(this,d);null!==e&&a.attributeChangedCallback(this,d,e,null,null)});M(Element.prototype,"removeAttributeNS",function(d,e){if(1!==this.__CE_state)return F.call(this,d,e);var g=D.call(this,d,e);F.call(this,d,e);var h=D.call(this,d,e);g!==h&&a.attributeChangedCallback(this,
e,g,h,d)});oa?c(HTMLElement.prototype,oa):G?c(Element.prototype,G):console.warn("Custom Elements: `Element#insertAdjacentElement` was not patched.");pa?f(HTMLElement.prototype,pa):fa?f(Element.prototype,fa):console.warn("Custom Elements: `Element#insertAdjacentHTML` was not patched.");Z(a,Element.prototype,{prepend:ha,append:ia});Ha(a)};var T=window.customElements;function Ja(){var a=new S;Ea(a);Fa(a);Z(a,DocumentFragment.prototype,{prepend:da,append:ea});Ga(a);Ia(a);a=new O(a);document.__CE_registry=a;Object.defineProperty(window,"customElements",{configurable:!0,enumerable:!0,value:a})}T&&!T.forcePolyfill&&"function"==typeof T.define&&"function"==typeof T.get||Ja();window.__CE_installPolyfill=Ja;
}).call(self);

//# sourceMappingURL=custom-elements.min.js.map

## custom-events.js
// Polyfill for creating CustomEvents on IE9/10/11

// code pulled from:
// https://github.com/d4tocchini/customevent-polyfill
// https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent#Polyfill

//window.dispatchEvent(new window.CustomEvent('some-event'))

(function() {
  if (typeof window === 'undefined') {
    return;
  }

  try {
    var ce = new window.CustomEvent('test', { cancelable: true });
    ce.preventDefault();
    if (ce.defaultPrevented !== true) {
      // IE has problems with .preventDefault() on custom events
      // http://stackoverflow.com/questions/23349191
      throw new Error('Could not prevent default');
    }
  } catch (e) {
    var CustomEvent = function(event, params) {
      var evt, origPrevent;
      params = params || {};
      params.bubbles = !!params.bubbles;
      params.cancelable = !!params.cancelable;

      evt = document.createEvent('CustomEvent');
      evt.initCustomEvent(
        event,
        params.bubbles,
        params.cancelable,
        params.detail
      );
      origPrevent = evt.preventDefault;
      evt.preventDefault = function() {
        origPrevent.call(this);
        try {
          Object.defineProperty(this, 'defaultPrevented', {
            get: function() {
              return true;
            }
          });
        } catch (e) {
          this.defaultPrevented = true;
        }
      };
      return evt;
    };

    CustomEvent.prototype = window.Event.prototype;
    window.CustomEvent = CustomEvent; // expose definition to window
  }
})();

## info.txt
https://www.jsdelivr.com/?query=author%3A%20webcomponents
https://www.jsdelivr.com/package/npm/@webcomponents/custom-elements

https://github.com/taylorhakes/promise-polyfill

https://github.com/kumarharsh/custom-event-polyfill

## promise.min.js
!function(e,n){"object"==typeof exports&&"undefined"!=typeof module?n():"function"==typeof define&&define.amd?define(n):n()}(0,function(){"use strict";function e(e){var n=this.constructor;return this.then(function(t){return n.resolve(e()).then(function(){return t})},function(t){return n.resolve(e()).then(function(){return n.reject(t)})})}function n(e){return!(!e||"undefined"==typeof e.length)}function t(){}function o(e){if(!(this instanceof o))throw new TypeError("Promises must be constructed via new");if("function"!=typeof e)throw new TypeError("not a function");this._state=0,this._handled=!1,this._value=undefined,this._deferreds=[],c(e,this)}function r(e,n){for(;3===e._state;)e=e._value;0!==e._state?(e._handled=!0,o._immediateFn(function(){var t=1===e._state?n.onFulfilled:n.onRejected;if(null!==t){var o;try{o=t(e._value)}catch(r){return void f(n.promise,r)}i(n.promise,o)}else(1===e._state?i:f)(n.promise,e._value)})):e._deferreds.push(n)}function i(e,n){try{if(n===e)throw new TypeError("A promise cannot be resolved with itself.");if(n&&("object"==typeof n||"function"==typeof n)){var t=n.then;if(n instanceof o)return e._state=3,e._value=n,void u(e);if("function"==typeof t)return void c(function(e,n){return function(){e.apply(n,arguments)}}(t,n),e)}e._state=1,e._value=n,u(e)}catch(r){f(e,r)}}function f(e,n){e._state=2,e._value=n,u(e)}function u(e){2===e._state&&0===e._deferreds.length&&o._immediateFn(function(){e._handled||o._unhandledRejectionFn(e._value)});for(var n=0,t=e._deferreds.length;t>n;n++)r(e,e._deferreds[n]);e._deferreds=null}function c(e,n){var t=!1;try{e(function(e){t||(t=!0,i(n,e))},function(e){t||(t=!0,f(n,e))})}catch(o){if(t)return;t=!0,f(n,o)}}var a=setTimeout;o.prototype["catch"]=function(e){return this.then(null,e)},o.prototype.then=function(e,n){var o=new this.constructor(t);return r(this,new function(e,n,t){this.onFulfilled="function"==typeof e?e:null,this.onRejected="function"==typeof n?n:null,this.promise=t}(e,n,o)),o},o.prototype["finally"]=e,o.all=function(e){return new o(function(t,o){function r(e,n){try{if(n&&("object"==typeof n||"function"==typeof n)){var u=n.then;if("function"==typeof u)return void u.call(n,function(n){r(e,n)},o)}i[e]=n,0==--f&&t(i)}catch(c){o(c)}}if(!n(e))return o(new TypeError("Promise.all accepts an array"));var i=Array.prototype.slice.call(e);if(0===i.length)return t([]);for(var f=i.length,u=0;i.length>u;u++)r(u,i[u])})},o.resolve=function(e){return e&&"object"==typeof e&&e.constructor===o?e:new o(function(n){n(e)})},o.reject=function(e){return new o(function(n,t){t(e)})},o.race=function(e){return new o(function(t,r){if(!n(e))return r(new TypeError("Promise.race accepts an array"));for(var i=0,f=e.length;f>i;i++)o.resolve(e[i]).then(t,r)})},o._immediateFn="function"==typeof setImmediate&&function(e){setImmediate(e)}||function(e){a(e,0)},o._unhandledRejectionFn=function(e){void 0!==console&&console&&console.warn("Possible Unhandled Promise Rejection:",e)};var l=function(){if("undefined"!=typeof self)return self;if("undefined"!=typeof window)return window;if("undefined"!=typeof global)return global;throw Error("unable to locate global object")}();"Promise"in l?l.Promise.prototype["finally"]||(l.Promise.prototype["finally"]=e):l.Promise=o});

## WebCom.js
//########################################################################################

var WebCom = {};
	////////////////////////////////////////////////////////
	// Initialize Web Component and Create an Instance
	////////////////////////////////////////////////////////

		// Need when creating an instance of a Web Component while using the polyfill
		WebCom.instance = function( fn, self ){ return (( Object.getPrototypeOf )? Object.getPrototypeOf( fn ) : fn.__proto__).call( self ); }

		// Sets up the function with the inherited prototype of HTMLElement
		WebCom.init = function( fn ){
			fn.prototype = Object.create( WebCom.HTMLElement && WebCom.HTMLElement.prototype,
				{ constructor: { value: fn, writable: true, configurable: true } }
			);

			if( Object.setPrototypeOf ) Object.setPrototypeOf( fn, WebCom.HTMLElement );
			else 						fn.__proto__ = WebCom.HTMLElement;

			return fn;
		};


	////////////////////////////////////////////////////////
	// Special Wrapper for HTMLEmement to work with
	// the polyfill on NON-IE browsers
	////////////////////////////////////////////////////////

		// This makes Element Classes to be able to run like a function, Needed for Reflect.construct
		// when creating an instance of a Web Component
		WebCom.elm_wrapper = function( cls ){
			// Check if HTML Element is the Polyfill or Native
			if ( cls === null || Function.toString.call(cls).indexOf("[native code]") == -1 ) return cls;

			// Build Class as if a Function Prototype
			function Wrapper(){
				var proto = ( Object.getPrototypeOf )? Object.getPrototypeOf( this ) : this.__proto__;
				return Reflect.construct( cls, arguments, proto.constructor );
			}

			Wrapper.prototype = Object.create( cls.prototype,
				{ constructor: { value: Wrapper, enumerable: false, writable: true, configurable: true } }
			);

			if( Object.setPrototypeOf ) Object.setPrototypeOf( Wrapper, cls );
			else 						Wrapper.__proto__ = cls;

			return Wrapper;
		}

		WebCom.HTMLElement = WebCom.elm_wrapper( HTMLElement );


	////////////////////////////////////////////////////////
	// Just Helper function to append template HTML to root
	// of the web component
	////////////////////////////////////////////////////////
		// Copy the Contents of template to the root of the web component element
		WebCom.append_template = function( elm, tmpl ){
			if( tmpl.content ){
				elm.appendChild( document.importNode( tmpl.content, true ) );
			}else{
				let i;
				for( i in tmpl.childNodes ){
					if( tmpl.childNodes[i].nodeType == 1 ){
						elm.appendChild( document.importNode( tmpl.childNodes[i], true ) );
					}
				}
			}
		}


//########################################################################################
// PolyFill for Element.closest()
/*
(function(){
	var ElementPrototype = window.Element.prototype;

	if (typeof ElementPrototype.matches !== 'function') {
		ElementPrototype.matches = ElementPrototype.msMatchesSelector || ElementPrototype.mozMatchesSelector || ElementPrototype.webkitMatchesSelector || function matches(selector) {
			var element = this;
			var elements = (element.document || element.ownerDocument).querySelectorAll(selector);
			var index = 0;

			while (elements[index] && elements[index] !== element) ++index;
			return Boolean(elements[index]);
		};
	}

	if (typeof ElementPrototype.closest !== 'function') {
		ElementPrototype.closest = function closest(selector) {
			var element = this;

			while (element && element.nodeType === 1) {
				if (element.matches(selector)) return element;
				element = element.parentNode;
			}

			return null;
		};
	}
})();
*/
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<title>WebComponents IE11</title>

	<script src="custom-elements.min.js"></script>
	<script src="custom-events.js"></script>
	<script src="promise.min.js"></script>
	<script src="WebCom.js"></script>

	<style>
	html, body{ height:100%; width:100%; padding:0px; margin:0px; }
	.PageLayout{ display:flex; flex-direction:column; width:100vw; height:100vh; }
	.PageLayout > header { display:flex; flex-direction:column; border:1px solid red; margin:10px;}
	.PageLayout > main{ flex:1; display:flex; flex-direction:row; align-items:stretch; border:1px solid blue; margin:10px; }
	.PageLayout > footer{ border:1px solid red; margin:10px; }
	</style>
	</head>
	<body>

	<page-layout title="Title from Attribute">
	<footer-text>Custom Sub Tag for the footer</footer-text>
	<div slot="pg_content">
	Div appended moved to the Layout Main tag.<br><br>
	<a href="javascript:gPage.dispatch('woot', 'boo');">Custom Event Test</a>
	</div>
	</page-layout>


	<script>
	var gPage;
	window.addEventListener( "load", function(){
	gPage = document.getElementsByTagName("page-layout")[0];

	gPage.on( "woot", function(e){
	alert("Woot Event: " + e.detail );
	});
	});


	//#####################################################################################
	// SUB WEB COMPONENT TEST

	function FooterText(){
	var self = WebCom.instance( FooterText, this );
	self.text = "";
	return self;
	} WebCom.init( FooterText );

	FooterText.prototype.connectedCallback = function(){
	this.text = this.innerText;
	this.innerHTML = "";
	}

	window.customElements.define( "footer-text", FooterText );


	//#####################################################################################
	// PAGE LAYOUT WEB COMPONENT

	function PageLayout(){
	var self = WebCom.instance( PageLayout, this );

	return self;
	} WebCom.init( PageLayout );


	////////////////////////////////////////////////////////
	// Web Component Methods
	////////////////////////////////////////////////////////
	PageLayout.prototype.disconnnectedCallback = function(){ console.log("disconnected"); }
	PageLayout.prototype.connectedCallback = function(){
	WebCom.append_template( this, PageLayout.Template );

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Slot Injection
	var i, s, ss, sname, slots = this.querySelectorAll("*[slot]");
	for( i=0; i < slots.length; i++ ){
	if( !slots[i].hasAttribute("slot") ) continue;

	elm = slots[i];
	sname = elm.getAttribute("slot");
	slot = this.querySelector( "*[name="+sname+"]" );

	if( !slot ) continue;

	if( slot.tagName == "SLOT" ) slot.parentNode.replaceChild( elm, slot );
	else slot.appendChild( elm );
	}

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Attribute Handling
	if( this.hasAttribute("title") ){
	elm = this.querySelector( "header" );
	elm.innerHTML = this.getAttribute("title");
	}

	//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
	// Handle Sub Tags - Has to be handled in a promise since sub tags load later.
	var self = this;
	this.ready_promise = customElements.whenDefined('footer-text').then(function(){
	var foot_txt = self.querySelector("footer-text"),
	footer = self.querySelector( "footer" );
	footer.innerHTML = foot_txt.text;
	});
	}

	////////////////////////////////////////////////////////
	// Custom Events
	////////////////////////////////////////////////////////
	PageLayout.prototype.on = function( name, func ){ this.addEventListener( name, func ); return this; }
	PageLayout.prototype.dispatch = function( name, detail ){
	this.dispatchEvent( new window.CustomEvent( name, { detail:detail, bubbles:false, cancelable:true, composed:false } ) );
	}

	////////////////////////////////////////////////////////
	// TEMPLATE
	////////////////////////////////////////////////////////
	PageLayout.Template = document.createElement("template");
	PageLayout.Template.innerHTML = "<div class=\"PageLayout\">\n\t\t<header>\n\n\t\t</header>\n\t\t<main name=\"pg_content\">\n\n\t\t</main>\n\t\t\n\t\t<footer>\n\t\t</footer>\n</div>";

	/*
	https://babeljs.io/repl/
	`<div class="PageLayout">
	<header></header>
	<main name="pg_content"></main>
	<footer></footer>
	</div>`;
	*/

	window.customElements.define( "page-layout", PageLayout );
	</script>

	</body>
	</html>
	(function(){
	/*

	Copyright (c) 2016 The Polymer Project Authors. All rights reserved.
	This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt
	The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt
	The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt
	Code distributed by Google as part of the polymer project is also
	subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt
	*/
	'use strict';var n=window.Document.prototype.createElement,p=window.Document.prototype.createElementNS,aa=window.Document.prototype.importNode,ba=window.Document.prototype.prepend,ca=window.Document.prototype.append,da=window.DocumentFragment.prototype.prepend,ea=window.DocumentFragment.prototype.append,q=window.Node.prototype.cloneNode,r=window.Node.prototype.appendChild,t=window.Node.prototype.insertBefore,u=window.Node.prototype.removeChild,v=window.Node.prototype.replaceChild,x=Object.getOwnPropertyDescriptor(window.Node.prototype,
	"textContent"),y=window.Element.prototype.attachShadow,z=Object.getOwnPropertyDescriptor(window.Element.prototype,"innerHTML"),A=window.Element.prototype.getAttribute,B=window.Element.prototype.setAttribute,C=window.Element.prototype.removeAttribute,D=window.Element.prototype.getAttributeNS,E=window.Element.prototype.setAttributeNS,F=window.Element.prototype.removeAttributeNS,G=window.Element.prototype.insertAdjacentElement,fa=window.Element.prototype.insertAdjacentHTML,ha=window.Element.prototype.prepend,
	ia=window.Element.prototype.append,ja=window.Element.prototype.before,ka=window.Element.prototype.after,la=window.Element.prototype.replaceWith,ma=window.Element.prototype.remove,na=window.HTMLElement,H=Object.getOwnPropertyDescriptor(window.HTMLElement.prototype,"innerHTML"),oa=window.HTMLElement.prototype.insertAdjacentElement,pa=window.HTMLElement.prototype.insertAdjacentHTML;var qa=new Set;"annotation-xml color-profile font-face font-face-src font-face-uri font-face-format font-face-name missing-glyph".split(" ").forEach(function(a){return qa.add(a)});function ra(a){var b=qa.has(a);a=/^[a-z][.0-9_a-z]-[\-.0-9_a-z]$/.test(a);return!b&&a}var sa=document.contains?document.contains.bind(document):document.documentElement.contains.bind(document.documentElement);
	function I(a){var b=a.isConnected;if(void 0!==b)return b;if(sa(a))return!0;for(;a&&!(a.__CE_isImportDocument\|\|a instanceof Document);)a=a.parentNode\|\|(window.ShadowRoot&&a instanceof ShadowRoot?a.host:void 0);return!(!a\|\|!(a.__CE_isImportDocument\|\|a instanceof Document))}function J(a){var b=a.children;if(b)return Array.prototype.slice.call(b);b=[];for(a=a.firstChild;a;a=a.nextSibling)a.nodeType===Node.ELEMENT_NODE&&b.push(a);return b}
	function K(a,b){for(;b&&b!==a&&!b.nextSibling;)b=b.parentNode;return b&&b!==a?b.nextSibling:null}
	function L(a,b,c){for(var f=a;f;){if(f.nodeType===Node.ELEMENT_NODE){var d=f;b(d);var e=d.localName;if("link"===e&&"import"===d.getAttribute("rel")){f=d.import;void 0===c&&(c=new Set);if(f instanceof Node&&!c.has(f))for(c.add(f),f=f.firstChild;f;f=f.nextSibling)L(f,b,c);f=K(a,d);continue}else if("template"===e){f=K(a,d);continue}if(d=d.__CE_shadowRoot)for(d=d.firstChild;d;d=d.nextSibling)L(d,b,c)}f=f.firstChild?f.firstChild:K(a,f)}}function M(a,b,c){a[b]=c};function ta(a){var b=document;this.c=a;this.a=b;this.b=void 0;N(this.c,this.a);"loading"===this.a.readyState&&(this.b=new MutationObserver(this.f.bind(this)),this.b.observe(this.a,{childList:!0,subtree:!0}))}function ua(a){a.b&&a.b.disconnect()}ta.prototype.f=function(a){var b=this.a.readyState;"interactive"!==b&&"complete"!==b\|\|ua(this);for(b=0;b<a.length;b++)for(var c=a[b].addedNodes,f=0;f<c.length;f++)N(this.c,c[f])};function va(){var a=this;this.b=this.a=void 0;this.c=new Promise(function(b){a.b=b;a.a&&b(a.a)})}function wa(a){if(a.a)throw Error("Already resolved.");a.a=void 0;a.b&&a.b(void 0)};function O(a){this.f=new Map;this.g=new Map;this.l=new Map;this.i=!1;this.b=a;this.j=new Map;this.c=function(b){return b()};this.a=!1;this.h=[];this.m=a.f?new ta(a):void 0}O.prototype.o=function(a,b){var c=this;if(!(b instanceof Function))throw new TypeError("Custom element constructor getters must be functions.");xa(this,a);this.f.set(a,b);this.h.push(a);this.a\|\|(this.a=!0,this.c(function(){return ya(c)}))};
	O.prototype.define=function(a,b){var c=this;if(!(b instanceof Function))throw new TypeError("Custom element constructors must be functions.");xa(this,a);za(this,a,b);this.h.push(a);this.a\|\|(this.a=!0,this.c(function(){return ya(c)}))};function xa(a,b){if(!ra(b))throw new SyntaxError("The element name '"+b+"' is not valid.");if(P(a,b))throw Error("A custom element with name '"+b+"' has already been defined.");if(a.i)throw Error("A custom element is already being defined.");}
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	}).call(self);

	//# sourceMappingURL=custom-elements.min.js.map
	// Polyfill for creating CustomEvents on IE9/10/11

	// code pulled from:
	// https://github.com/d4tocchini/customevent-polyfill
	// https://developer.mozilla.org/en-US/docs/Web/API/CustomEvent#Polyfill

	//window.dispatchEvent(new window.CustomEvent('some-event'))

	(function() {
	if (typeof window === 'undefined') {
	return;
	}

	try {
	var ce = new window.CustomEvent('test', { cancelable: true });
	ce.preventDefault();
	if (ce.defaultPrevented !== true) {
	// IE has problems with .preventDefault() on custom events
	// http://stackoverflow.com/questions/23349191
	throw new Error('Could not prevent default');
	}
	} catch (e) {
	var CustomEvent = function(event, params) {
	var evt, origPrevent;
	params = params \|\| {};
	params.bubbles = !!params.bubbles;
	params.cancelable = !!params.cancelable;

	evt = document.createEvent('CustomEvent');
	evt.initCustomEvent(
	event,
	params.bubbles,
	params.cancelable,
	params.detail
	);
	origPrevent = evt.preventDefault;
	evt.preventDefault = function() {
	origPrevent.call(this);
	try {
	Object.defineProperty(this, 'defaultPrevented', {
	get: function() {
	return true;
	}
	});
	} catch (e) {
	this.defaultPrevented = true;
	}
	};
	return evt;
	};

	CustomEvent.prototype = window.Event.prototype;
	window.CustomEvent = CustomEvent; // expose definition to window
	}
	})();
	https://www.jsdelivr.com/?query=author%3A%20webcomponents
	https://www.jsdelivr.com/package/npm/@webcomponents/custom-elements

	https://github.com/taylorhakes/promise-polyfill

	https://github.com/kumarharsh/custom-event-polyfill
	//########################################################################################

	var WebCom = {};
	////////////////////////////////////////////////////////
	// Initialize Web Component and Create an Instance
	////////////////////////////////////////////////////////

	// Need when creating an instance of a Web Component while using the polyfill
	WebCom.instance = function( fn, self ){ return (( Object.getPrototypeOf )? Object.getPrototypeOf( fn ) : fn.__proto__).call( self ); }

	// Sets up the function with the inherited prototype of HTMLElement
	WebCom.init = function( fn ){
	fn.prototype = Object.create( WebCom.HTMLElement && WebCom.HTMLElement.prototype,
	{ constructor: { value: fn, writable: true, configurable: true } }
	);

	if( Object.setPrototypeOf ) Object.setPrototypeOf( fn, WebCom.HTMLElement );
	else fn.__proto__ = WebCom.HTMLElement;

	return fn;
	};


	////////////////////////////////////////////////////////
	// Special Wrapper for HTMLEmement to work with
	// the polyfill on NON-IE browsers
	////////////////////////////////////////////////////////

	// This makes Element Classes to be able to run like a function, Needed for Reflect.construct
	// when creating an instance of a Web Component
	WebCom.elm_wrapper = function( cls ){
	// Check if HTML Element is the Polyfill or Native
	if ( cls === null \|\| Function.toString.call(cls).indexOf("[native code]") == -1 ) return cls;

	// Build Class as if a Function Prototype
	function Wrapper(){
	var proto = ( Object.getPrototypeOf )? Object.getPrototypeOf( this ) : this.__proto__;
	return Reflect.construct( cls, arguments, proto.constructor );
	}

	Wrapper.prototype = Object.create( cls.prototype,
	{ constructor: { value: Wrapper, enumerable: false, writable: true, configurable: true } }
	);

	if( Object.setPrototypeOf ) Object.setPrototypeOf( Wrapper, cls );
	else Wrapper.__proto__ = cls;

	return Wrapper;
	}

	WebCom.HTMLElement = WebCom.elm_wrapper( HTMLElement );


	////////////////////////////////////////////////////////
	// Just Helper function to append template HTML to root
	// of the web component
	////////////////////////////////////////////////////////
	// Copy the Contents of template to the root of the web component element
	WebCom.append_template = function( elm, tmpl ){
	if( tmpl.content ){
	elm.appendChild( document.importNode( tmpl.content, true ) );
	}else{
	let i;
	for( i in tmpl.childNodes ){
	if( tmpl.childNodes[i].nodeType == 1 ){
	elm.appendChild( document.importNode( tmpl.childNodes[i], true ) );
	}
	}
	}
	}


	//########################################################################################
	// PolyFill for Element.closest()
	/*
	(function(){
	var ElementPrototype = window.Element.prototype;

	if (typeof ElementPrototype.matches !== 'function') {
	ElementPrototype.matches = ElementPrototype.msMatchesSelector \|\| ElementPrototype.mozMatchesSelector \|\| ElementPrototype.webkitMatchesSelector \|\| function matches(selector) {
	var element = this;
	var elements = (element.document \|\| element.ownerDocument).querySelectorAll(selector);
	var index = 0;

	while (elements[index] && elements[index] !== element) ++index;
	return Boolean(elements[index]);
	};
	}

	if (typeof ElementPrototype.closest !== 'function') {
	ElementPrototype.closest = function closest(selector) {
	var element = this;

	while (element && element.nodeType === 1) {
	if (element.matches(selector)) return element;
	element = element.parentNode;
	}

	return null;
	};
	}
	})();
	*/