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Test polyfill crash on IE11
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Test polyfill client</title> | |
| </head> | |
| <body> | |
| <p>On Internet Explorer and Edge, both polyfills will try to create window.CustomElementRegistry, and the second will crash.</p> | |
| <p>In this case, the execution <span id="result"></span></p> | |
| <script src="script.js"></script> | |
| </body> | |
| </html> |
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| try { | |
| /* | |
| * This is document-register-element 1.7, included in dist files by Stencil 0.x | |
| */ | |
| /*! (C) Andrea Giammarchi - @WebReflection - Mit Style License */ | |
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| return a},e=b.prototype;if(!(e instanceof Object))throw new TypeError("The custom element constructor's prototype is not an object.");var f=c("connectedCallback");var t=c("disconnectedCallback");var k=c("adoptedCallback");var h=c("attributeChangedCallback");var m=b.observedAttributes||[]}catch(q){return}finally{this.c=!1}b={localName:a,constructorFunction:b,connectedCallback:f,disconnectedCallback:t,adoptedCallback:k,attributeChangedCallback:h,observedAttributes:m,constructionStack:[]};ba(this.a, | |
| a,b);this.g.push(b);this.b||(this.b=!0,this.f(function(){return fa(d)}))};E.prototype.i=function(a){A(this.a,a)}; | |
| function fa(a){if(!1!==a.b){a.b=!1;for(var b=a.g,d=[],c=new Map,e=0;e<b.length;e++)c.set(b[e].localName,[]);A(a.a,document,{i:function(b){if(void 0===b.__CE_state){var e=b.localName,f=c.get(e);f?f.push(b):a.a.a.get(e)&&d.push(b)}}});for(e=0;e<d.length;e++)y(a.a,d[e]);for(;0<b.length;){var f=b.shift();e=f.localName;f=c.get(f.localName);for(var t=0;t<f.length;t++)y(a.a,f[t]);(e=a.j.get(e))&&D(e)}}}E.prototype.get=function(a){if(a=this.a.a.get(a))return a.constructorFunction}; | |
| E.prototype.m=function(a){if(!g(a))return Promise.reject(new SyntaxError("'"+a+"' is not a valid custom element name."));var b=this.j.get(a);if(b)return b.c;b=new ea;this.j.set(a,b);this.a.a.get(a)&&!this.g.some(function(b){return b.localName===a})&&D(b);return b.c};E.prototype.s=function(a){C(this.o);var b=this.f;this.f=function(d){return a(function(){return b(d)})}};window.CustomElementRegistry=E;E.prototype.define=E.prototype.l;E.prototype.upgrade=E.prototype.i;E.prototype.get=E.prototype.get; | |
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| "textContent"),N=window.Element.prototype.attachShadow,O=Object.getOwnPropertyDescriptor(window.Element.prototype,"innerHTML"),P=window.Element.prototype.getAttribute,Q=window.Element.prototype.setAttribute,R=window.Element.prototype.removeAttribute,S=window.Element.prototype.getAttributeNS,T=window.Element.prototype.setAttributeNS,U=window.Element.prototype.removeAttributeNS,ma=window.Element.prototype.insertAdjacentElement,na=window.Element.prototype.insertAdjacentHTML,oa=window.Element.prototype.prepend, | |
| pa=window.Element.prototype.append,V=window.Element.prototype.before,qa=window.Element.prototype.after,ra=window.Element.prototype.replaceWith,sa=window.Element.prototype.remove,ta=window.HTMLElement,W=Object.getOwnPropertyDescriptor(window.HTMLElement.prototype,"innerHTML"),ua=window.HTMLElement.prototype.insertAdjacentElement,va=window.HTMLElement.prototype.insertAdjacentHTML;var wa=new function(){};function xa(){var a=X;window.HTMLElement=function(){function b(){var b=this.constructor,c=a.g.get(b);if(!c)throw Error("The custom element being constructed was not registered with `customElements`.");var e=c.constructionStack;if(0===e.length)return e=F.call(document,c.localName),Object.setPrototypeOf(e,b.prototype),e.__CE_state=1,e.__CE_definition=c,w(a,e),e;c=e.length-1;var f=e[c];if(f===wa)throw Error("The HTMLElement constructor was either called reentrantly for this constructor or called multiple times."); | |
| e[c]=wa;Object.setPrototypeOf(f,b.prototype);w(a,f);return f}b.prototype=ta.prototype;Object.defineProperty(b.prototype,"constructor",{writable:!0,configurable:!0,enumerable:!1,value:b});return b}()};function Y(a,b,d){function c(b){return function(d){for(var e=[],c=0;c<arguments.length;++c)e[c]=arguments[c];c=[];for(var f=[],m=0;m<e.length;m++){var q=e[m];q instanceof Element&&l(q)&&f.push(q);if(q instanceof DocumentFragment)for(q=q.firstChild;q;q=q.nextSibling)c.push(q);else c.push(q)}b.apply(this,e);for(e=0;e<f.length;e++)z(a,f[e]);if(l(this))for(e=0;e<c.length;e++)f=c[e],f instanceof Element&&x(a,f)}}void 0!==d.h&&(b.prepend=c(d.h));void 0!==d.append&&(b.append=c(d.append))};function ya(){var a=X;r(Document.prototype,"createElement",function(b){if(this.__CE_hasRegistry){var d=a.a.get(b);if(d)return new d.constructorFunction}b=F.call(this,b);w(a,b);return b});r(Document.prototype,"importNode",function(b,d){b=ha.call(this,b,!!d);this.__CE_hasRegistry?A(a,b):v(a,b);return b});r(Document.prototype,"createElementNS",function(b,d){if(this.__CE_hasRegistry&&(null===b||"http://www.w3.org/1999/xhtml"===b)){var c=a.a.get(d);if(c)return new c.constructorFunction}b=G.call(this,b, | |
| d);w(a,b);return b});Y(a,Document.prototype,{h:ia,append:ja})};function za(){function a(a,c){Object.defineProperty(a,"textContent",{enumerable:c.enumerable,configurable:!0,get:c.get,set:function(a){if(this.nodeType===Node.TEXT_NODE)c.set.call(this,a);else{var d=void 0;if(this.firstChild){var e=this.childNodes,k=e.length;if(0<k&&l(this)){d=Array(k);for(var h=0;h<k;h++)d[h]=e[h]}}c.set.call(this,a);if(d)for(a=0;a<d.length;a++)z(b,d[a])}}})}var b=X;r(Node.prototype,"insertBefore",function(a,c){if(a instanceof DocumentFragment){var e=Array.prototype.slice.apply(a.childNodes); | |
| a=J.call(this,a,c);if(l(this))for(c=0;c<e.length;c++)x(b,e[c]);return a}e=l(a);c=J.call(this,a,c);e&&z(b,a);l(this)&&x(b,a);return c});r(Node.prototype,"appendChild",function(a){if(a instanceof DocumentFragment){var c=Array.prototype.slice.apply(a.childNodes);a=I.call(this,a);if(l(this))for(var e=0;e<c.length;e++)x(b,c[e]);return a}c=l(a);e=I.call(this,a);c&&z(b,a);l(this)&&x(b,a);return e});r(Node.prototype,"cloneNode",function(a){a=H.call(this,!!a);this.ownerDocument.__CE_hasRegistry?A(b,a):v(b, | |
| a);return a});r(Node.prototype,"removeChild",function(a){var c=l(a),e=K.call(this,a);c&&z(b,a);return e});r(Node.prototype,"replaceChild",function(a,c){if(a instanceof DocumentFragment){var e=Array.prototype.slice.apply(a.childNodes);a=L.call(this,a,c);if(l(this))for(z(b,c),c=0;c<e.length;c++)x(b,e[c]);return a}e=l(a);var f=L.call(this,a,c),d=l(this);d&&z(b,c);e&&z(b,a);d&&x(b,a);return f});M&&M.get?a(Node.prototype,M):ca(b,function(b){a(b,{enumerable:!0,configurable:!0,get:function(){for(var a=[], | |
| b=0;b<this.childNodes.length;b++){var f=this.childNodes[b];f.nodeType!==Node.COMMENT_NODE&&a.push(f.textContent)}return a.join("")},set:function(a){for(;this.firstChild;)K.call(this,this.firstChild);null!=a&&""!==a&&I.call(this,document.createTextNode(a))}})})};function Aa(a){function b(b){return function(e){for(var c=[],d=0;d<arguments.length;++d)c[d]=arguments[d];d=[];for(var k=[],h=0;h<c.length;h++){var m=c[h];m instanceof Element&&l(m)&&k.push(m);if(m instanceof DocumentFragment)for(m=m.firstChild;m;m=m.nextSibling)d.push(m);else d.push(m)}b.apply(this,c);for(c=0;c<k.length;c++)z(a,k[c]);if(l(this))for(c=0;c<d.length;c++)k=d[c],k instanceof Element&&x(a,k)}}var d=Element.prototype;void 0!==V&&(d.before=b(V));void 0!==V&&(d.after=b(qa));void 0!==ra&& | |
| r(d,"replaceWith",function(b){for(var e=[],c=0;c<arguments.length;++c)e[c]=arguments[c];c=[];for(var d=[],k=0;k<e.length;k++){var h=e[k];h instanceof Element&&l(h)&&d.push(h);if(h instanceof DocumentFragment)for(h=h.firstChild;h;h=h.nextSibling)c.push(h);else c.push(h)}k=l(this);ra.apply(this,e);for(e=0;e<d.length;e++)z(a,d[e]);if(k)for(z(a,this),e=0;e<c.length;e++)d=c[e],d instanceof Element&&x(a,d)});void 0!==sa&&r(d,"remove",function(){var b=l(this);sa.call(this);b&&z(a,this)})};function Ba(){function a(a,b){Object.defineProperty(a,"innerHTML",{enumerable:b.enumerable,configurable:!0,get:b.get,set:function(a){var e=this,d=void 0;l(this)&&(d=[],p(this,function(a){a!==e&&d.push(a)}));b.set.call(this,a);if(d)for(var f=0;f<d.length;f++){var t=d[f];1===t.__CE_state&&c.disconnectedCallback(t)}this.ownerDocument.__CE_hasRegistry?A(c,this):v(c,this);return a}})}function b(a,b){r(a,"insertAdjacentElement",function(a,e){var d=l(e);a=b.call(this,a,e);d&&z(c,e);l(a)&&x(c,e);return a})} | |
| function d(a,b){function e(a,b){for(var e=[];a!==b;a=a.nextSibling)e.push(a);for(b=0;b<e.length;b++)A(c,e[b])}r(a,"insertAdjacentHTML",function(a,c){a=a.toLowerCase();if("beforebegin"===a){var d=this.previousSibling;b.call(this,a,c);e(d||this.parentNode.firstChild,this)}else if("afterbegin"===a)d=this.firstChild,b.call(this,a,c),e(this.firstChild,d);else if("beforeend"===a)d=this.lastChild,b.call(this,a,c),e(d||this.firstChild,null);else if("afterend"===a)d=this.nextSibling,b.call(this,a,c),e(this.nextSibling, | |
| d);else throw new SyntaxError("The value provided ("+String(a)+") is not one of 'beforebegin', 'afterbegin', 'beforeend', or 'afterend'.");})}var c=X;N&&r(Element.prototype,"attachShadow",function(a){a=N.call(this,a);var b=c;if(b.b&&!a.__CE_patched){a.__CE_patched=!0;for(var e=0;e<b.c.length;e++)b.c[e](a)}return this.__CE_shadowRoot=a});O&&O.get?a(Element.prototype,O):W&&W.get?a(HTMLElement.prototype,W):da(c,function(b){a(b,{enumerable:!0,configurable:!0,get:function(){return H.call(this,!0).innerHTML}, | |
| set:function(a){var b="template"===this.localName,c=b?this.content:this,e=G.call(document,this.namespaceURI,this.localName);for(e.innerHTML=a;0<c.childNodes.length;)K.call(c,c.childNodes[0]);for(a=b?e.content:e;0<a.childNodes.length;)I.call(c,a.childNodes[0])}})});r(Element.prototype,"setAttribute",function(a,b){if(1!==this.__CE_state)return Q.call(this,a,b);var e=P.call(this,a);Q.call(this,a,b);b=P.call(this,a);c.attributeChangedCallback(this,a,e,b,null)});r(Element.prototype,"setAttributeNS",function(a, | |
| b,d){if(1!==this.__CE_state)return T.call(this,a,b,d);var e=S.call(this,a,b);T.call(this,a,b,d);d=S.call(this,a,b);c.attributeChangedCallback(this,b,e,d,a)});r(Element.prototype,"removeAttribute",function(a){if(1!==this.__CE_state)return R.call(this,a);var b=P.call(this,a);R.call(this,a);null!==b&&c.attributeChangedCallback(this,a,b,null,null)});r(Element.prototype,"removeAttributeNS",function(a,b){if(1!==this.__CE_state)return U.call(this,a,b);var d=S.call(this,a,b);U.call(this,a,b);var e=S.call(this, | |
| a,b);d!==e&&c.attributeChangedCallback(this,b,d,e,a)});ua?b(HTMLElement.prototype,ua):ma?b(Element.prototype,ma):console.warn("Custom Elements: `Element#insertAdjacentElement` was not patched.");va?d(HTMLElement.prototype,va):na?d(Element.prototype,na):console.warn("Custom Elements: `Element#insertAdjacentHTML` was not patched.");Y(c,Element.prototype,{h:oa,append:pa});Aa(c)};var Z=window.customElements;if(!Z||Z.forcePolyfill||"function"!=typeof Z.define||"function"!=typeof Z.get){var X=new u;xa();ya();Y(X,DocumentFragment.prototype,{h:ka,append:la});za();Ba();document.__CE_hasRegistry=!0;var customElements=new E(X);Object.defineProperty(window,"customElements",{configurable:!0,enumerable:!0,value:customElements})}; | |
| }).call(self); | |
| document.getElementById('result').innerHTML = 'went fine'; | |
| } catch (e) { | |
| document.getElementById('result').innerHTML = 'crashed with error: <code>' + e.toString() + '</code>'; | |
| } |
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