From 839c347719d4fccc72093773a4d8e24a922afec8 Mon Sep 17 00:00:00 2001
From: Madara Uchiha <MadaraUchiha@users.noreply.github.com>
Date: Mon, 29 Feb 2016 16:54:50 +0200
Subject: [PATCH 1/8] Set HTMLTemplateElement as a window property

Rather than as a global variable, which seems to have troubles with strict mode in a few browsers.

Closes #496
---
 src/Template/Template.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Template/Template.js b/src/Template/Template.js
index fbb09a9c8..95d57b7d8 100644
--- a/src/Template/Template.js
+++ b/src/Template/Template.js
@@ -225,7 +225,7 @@
   }
 
   if (needsTemplate) {
-    HTMLTemplateElement = TemplateImpl;
+    window.HTMLTemplateElement = TemplateImpl;
   }
 
-})();
\ No newline at end of file
+})();

From 7d7fad8ac258a10257e692a57b1b542860d03725 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=A9r=C3=A9my=20Lal?= <kapouer@melix.org>
Date: Thu, 3 Mar 2016 22:55:22 +0100
Subject: [PATCH 2/8] fixClonedDom: return if source is not an element

---
 src/Template/Template.js | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/Template/Template.js b/src/Template/Template.js
index 95d57b7d8..f39394166 100644
--- a/src/Template/Template.js
+++ b/src/Template/Template.js
@@ -173,6 +173,8 @@
     // subtree and replace them with cloned <template>'s from source.
     // We must do this because only the source templates have proper .content.
     TemplateImpl.fixClonedDom = function(clone, source) {
+      // do nothing if cloned node is not an element
+      if (!source.querySelectorAll) return;
       // these two lists should be coincident
       var s$ = source.querySelectorAll(TEMPLATE_TAG);
       var t$ = clone.querySelectorAll(TEMPLATE_TAG);

From 98d33dfb1ec289d59c4d13da8057db12ef24091a Mon Sep 17 00:00:00 2001
From: Daniel Freedman <dfreedm@google.com>
Date: Wed, 13 Apr 2016 11:12:07 -0700
Subject: [PATCH 3/8] Make sure IE11 importNode workaround for doc fragments is
 patch on importNode

Fixes #518
---
 src/CustomElements/register.js | 21 -------------------
 src/Template/Template.js       | 38 ++++++++++++++++++++++++++--------
 2 files changed, 29 insertions(+), 30 deletions(-)

diff --git a/src/CustomElements/register.js b/src/CustomElements/register.js
index 3a58bfe56..e85eab4a5 100644
--- a/src/CustomElements/register.js
+++ b/src/CustomElements/register.js
@@ -350,27 +350,6 @@ function wrapDomMethodToForceUpgrade(obj, methodName) {
 wrapDomMethodToForceUpgrade(Node.prototype, 'cloneNode');
 wrapDomMethodToForceUpgrade(document, 'importNode');
 
-// Patch document.importNode to work around IE11 bug that
-// casues children of a document fragment imported while
-// there is a mutation observer to not have a parentNode (!?!)
-if (isIE) {
-  (function() {
-    var importNode = document.importNode;
-    document.importNode = function() {
-      var n = importNode.apply(document, arguments);
-      // Copy all children to a new document fragment since
-      // this one may be broken
-      if (n.nodeType == n.DOCUMENT_FRAGMENT_NODE) {
-        var f = document.createDocumentFragment();
-        f.appendChild(n);
-        return f;
-      } else {
-        return n;
-      }
-    };
-  })();
-}
-
 // exports
 document.registerElement = register;
 document.createElement = createElement; // override
diff --git a/src/Template/Template.js b/src/Template/Template.js
index f39394166..784baa063 100644
--- a/src/Template/Template.js
+++ b/src/Template/Template.js
@@ -11,8 +11,29 @@
 // minimal template polyfill
 (function() {
   var needsTemplate = (typeof HTMLTemplateElement === 'undefined');
+  // NOTE: Patch document.importNode to work around IE11 bug that
+  // casues children of a document fragment imported while
+  // there is a mutation observer to not have a parentNode (!?!)
+  // This needs to happen *after* patching importNode to fix template cloning
+  if (/Trident/.test(navigator.userAgent)) {
+    (function() {
+      var importNode = document.importNode;
+      document.importNode = function() {
+        var n = importNode.apply(document, arguments);
+        // Copy all children to a new document fragment since
+        // this one may be broken
+        if (n.nodeType === Node.DOCUMENT_FRAGMENT_NODE) {
+          var f = document.createDocumentFragment();
+          f.appendChild(n);
+          return f;
+        } else {
+          return n;
+        }
+      };
+    })();
+  }
 
-  // returns true if nested templates can be cloned (they cannot be on 
+  // returns true if nested templates can be cloned (they cannot be on
   // some impl's like Safari 8)
   var needsCloning = (function() {
     if (!needsTemplate) {
@@ -42,7 +63,6 @@
     /**
       Provides a minimal shim for the <template> element.
     */
-    
     TemplateImpl.prototype = Object.create(HTMLElement.prototype);
 
     /**
@@ -59,6 +79,11 @@
       while (child = template.firstChild) {
         template.content.appendChild(child);
       }
+
+      template.cloneNode = function(deep) {
+        return TemplateImpl.cloneNode(this, deep);
+      };
+
       // add innerHTML to template, if possible
       // Note: this throws on Safari 7
       if (canDecorate) {
@@ -84,10 +109,6 @@
             configurable: true
           });
 
-          template.cloneNode = function(deep) {
-            return TemplateImpl.cloneNode(this, deep);
-          };
-
         } catch (err) {
           canDecorate = false;
         }
@@ -169,7 +190,7 @@
       return clone;
     };
 
-    // Given a source and cloned subtree, find <template>'s in the cloned 
+    // Given a source and cloned subtree, find <template>'s in the cloned
     // subtree and replace them with cloned <template>'s from source.
     // We must do this because only the source templates have proper .content.
     TemplateImpl.fixClonedDom = function(clone, source) {
@@ -203,7 +224,7 @@
 
     // NOTE: we are cloning instead of importing <template>'s.
     // However, the ownerDocument of the cloned template will be correct!
-    // This is because the native import node creates the right document owned 
+    // This is because the native import node creates the right document owned
     // subtree and `fixClonedDom` inserts cloned templates into this subtree,
     // thus updating the owner doc.
     document.importNode = function(element, deep) {
@@ -223,7 +244,6 @@
         return TemplateImpl.cloneNode(this, deep);
       };
     }
-    
   }
 
   if (needsTemplate) {

From 90564190405e62eced7189edcd600d239b4ba2bf Mon Sep 17 00:00:00 2001
From: Daniel Freedman <dfreedm@google.com>
Date: Wed, 13 Apr 2016 12:28:12 -0700
Subject: [PATCH 4/8] fix safari 7 tests

---
 src/Template/Template.js  |  4 ++--
 tests/Template/tests.html | 41 +++++++++++++++++++++++++++++++++------
 2 files changed, 37 insertions(+), 8 deletions(-)

diff --git a/src/Template/Template.js b/src/Template/Template.js
index 784baa063..f84ce3c4e 100644
--- a/src/Template/Template.js
+++ b/src/Template/Template.js
@@ -138,7 +138,7 @@
     document.createElement = function() {
       'use strict';
       var el = createElement.apply(document, arguments);
-      if (el.localName == 'template') {
+      if (el.localName === 'template') {
         TemplateImpl.decorate(el);
       }
       return el;
@@ -173,7 +173,7 @@
     var nativeCloneNode = Node.prototype.cloneNode;
 
     TemplateImpl.cloneNode = function(template, deep) {
-      var clone = nativeCloneNode.call(template);
+      var clone = nativeCloneNode.call(template, false);
       // NOTE: decorate doesn't auto-fix children because they are already
       // decorated so they need special clone fixup.
       if (this.decorate) {
diff --git a/tests/Template/tests.html b/tests/Template/tests.html
index 1c9a2c2e6..a704a526e 100644
--- a/tests/Template/tests.html
+++ b/tests/Template/tests.html
@@ -37,6 +37,32 @@
           template = document.querySelector('template');
         });
 
+        var canInnerHTML = (function() {
+          var el = document.createElement('div');
+          try {
+            Object.defineProperty(el, 'innerHTML', {
+              get: function(){},
+              set: function(){}
+            });
+            return true;
+          } catch(e) {
+            return false;
+          }
+        })();
+
+        function setupTemplate(template, string) {
+          if (canInnerHTML) {
+            template.innerHTML = string;
+          } else {
+            var el = document.createElement('div');
+            el.innerHTML = string;
+            var nodes = Array.prototype.slice.call(el.childNodes, 0);
+            for (var i = 0; i < nodes.length; i++) {
+              template.content.appendChild(nodes[i]);
+            }
+          }
+        }
+
         test('No rendering', function() {
           var bcr = template.getBoundingClientRect();
           assert.equal(bcr.height, 0);
@@ -58,6 +84,9 @@
         });
 
         test('innerHTML', function() {
+          if (!canInnerHTML) {
+            this.skip();
+          }
           var imp = document.createElement('template');
           assert.equal(imp.innerHTML, '');
           var s = 'pre<div>Hi</div><div>Bye</div>post';
@@ -84,7 +113,7 @@
         test('clone', function() {
           var imp = document.createElement('template');
           var s = '<div>Hi</div>';
-          imp.innerHTML = s;
+          setupTemplate(imp, s);
           var clone = imp.cloneNode();
           assert.notEqual(clone, imp, 'element is not cloned');
           assert.isDefined(clone.content, 'cloned template content dne');
@@ -100,7 +129,7 @@
         test('clone nested', function() {
           var imp = document.createElement('template');
           var s = 'a<template id="a">b<template id="b">c<template id="c">d</template></template></template>';
-          imp.innerHTML = s;
+          setupTemplate(imp, s);
           var clone = imp.cloneNode();
           assert.notEqual(clone, imp, 'element is not cloned');
           assert.isDefined(clone.content, 'cloned template content dne');
@@ -129,7 +158,7 @@
           var imp = document.createElement('div');
           var t = document.createElement('template');
           var s = 'a<template id="a">b<template id="b">c<template id="c">d</template></template></template>';
-          t.innerHTML = s;
+          setupTemplate(t, s);
           imp.appendChild(t);
           var impClone = imp.cloneNode(true);
           var imp = imp.firstChild;
@@ -155,7 +184,7 @@
         test('importNode', function() {
           var imp = document.createElement('template');
           var s = '<div>Hi</div>';
-          imp.innerHTML = s;
+          setupTemplate(imp, s)
           var clone = document.importNode(imp, false);
           assert.notEqual(clone, imp, 'element is not cloned');
           assert.isDefined(clone.content, 'cloned template content dne');
@@ -171,7 +200,7 @@
         test('importNode: nested', function() {
           var imp = document.createElement('template');
           var s = 'a<template id="a">b<template id="b">c<template id="c">d</template></template></template>';
-          imp.innerHTML = s;
+          setupTemplate(imp, s);
           var clone = document.importNode(imp, false);
           assert.notEqual(clone, imp, 'element is not cloned');
           assert.isDefined(clone.content, 'cloned template content dne');
@@ -200,7 +229,7 @@
           var imp = document.createElement('div');
           var t = document.createElement('template');
           var s = 'a<template id="a">b<template id="b">c<template id="c">d</template></template></template>';
-          t.innerHTML = s;
+          setupTemplate(t, s);
           imp.appendChild(t);
           var impClone = document.importNode(imp, true);
           imp = imp.firstChild;

From 2fbf8533859c6d253c9b7c8291b34af4ec84e902 Mon Sep 17 00:00:00 2001
From: Daniel Freedman <dfreedm@google.com>
Date: Wed, 13 Apr 2016 12:53:08 -0700
Subject: [PATCH 5/8] try with newer ubuntu travis

---
 .travis.yml | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index bafba95ec..779c2bed1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,6 @@
 language: node_js
-sudo: false
+sudo: required
+dist: trusty
 node_js: 4
 addons:
   sauce_connect: true
@@ -7,10 +8,8 @@ addons:
   apt:
     sources:
     - google-chrome
-    - ubuntu-toolchain-r-test
     packages:
     - google-chrome-stable
-    - g++-4.8
 before_script:
 - export PATH=$PWD/node_modules/.bin:$PATH
 script:
@@ -20,4 +19,3 @@ env:
   global:
   - secure: c0kVrjNDtqd06Gyg4Xi3iopr0KCz1k0LbZeL+TCbnyCdmAE7m9FcJASWvM2Zr7d774hTiMSi0Z79SlV6XZhLN2pi4EsbdEpsnVeAXXH/GYzDKgpXbdfD/nQv4n1nMXL6XSaZkAX7WwgmrjzJ9cXQJYV9vNHIBRcGoVRRyCFx9v4=
   - secure: Mo+AVRGUmlDENnZ2GioF5pU62WhyLUMnPlSqzeodZzJoAnwcNr9VnHiRCgQBLnHCZwjbMv6C0vhWopY7lN9w77vlS5vr8MDZKjYT/YRl9jk0+hStJ+diSS9MD+FnNNerXe+V+WA6NYVHno3vdWRqDDMYzCdH/pyLukkuKdMFaAU=
-  - CXX=g++-4.8

From bffb86c750039b54ca9d3d3df5c46426cb4ab570 Mon Sep 17 00:00:00 2001
From: Daniel Freedman <dfreedm@google.com>
Date: Thu, 14 Apr 2016 10:52:15 -0700
Subject: [PATCH 6/8] Edge 13 needs a fixed template clone

---
 .travis.yml               |  2 +-
 src/Template/Template.js  | 12 ++++++------
 tests/Template/tests.html |  2 +-
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 779c2bed1..a4f67bbef 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,7 @@
 language: node_js
 sudo: required
 dist: trusty
-node_js: 4
+node_js: stable
 addons:
   sauce_connect: true
   firefox: latest
diff --git a/src/Template/Template.js b/src/Template/Template.js
index f84ce3c4e..f43e72ae7 100644
--- a/src/Template/Template.js
+++ b/src/Template/Template.js
@@ -33,16 +33,16 @@
     })();
   }
 
-  // returns true if nested templates can be cloned (they cannot be on
+  // returns true if nested templates cannot be cloned (they cannot be on
   // some impl's like Safari 8)
   var needsCloning = (function() {
     if (!needsTemplate) {
-      var frag = document.createDocumentFragment();
       var t = document.createElement('template');
-      frag.appendChild(t);
-      t.content.appendChild(document.createElement('div'));
-      var clone = frag.cloneNode(true);
-      return (clone.firstChild.content.childNodes.length === 0);
+      var t2 = document.createElement('template');
+      t2.content.appendChild(document.createElement('div'));
+      t.content.appendChild(t2);
+      var clone = t.cloneNode(true);
+      return (clone.content.childNodes.length === 0 || clone.content.firstChild.content.childNodes.length === 0);
     }
   })();
 
diff --git a/tests/Template/tests.html b/tests/Template/tests.html
index a704a526e..3bf74402c 100644
--- a/tests/Template/tests.html
+++ b/tests/Template/tests.html
@@ -130,7 +130,7 @@
           var imp = document.createElement('template');
           var s = 'a<template id="a">b<template id="b">c<template id="c">d</template></template></template>';
           setupTemplate(imp, s);
-          var clone = imp.cloneNode();
+          var clone = imp.cloneNode(false);
           assert.notEqual(clone, imp, 'element is not cloned');
           assert.isDefined(clone.content, 'cloned template content dne');
           assert.equal(clone.content.childNodes.length, 0,

From 758babf617a6dbdd9e25f1f4fdff67c5480f8386 Mon Sep 17 00:00:00 2001
From: Jeremy Banks <jre@google.com>
Date: Fri, 15 Apr 2016 14:15:09 -0700
Subject: [PATCH 7/8] Ensures extended element names are case-insensitive
 during registration (#507)

* Update Custom Elements test to demonstrate case-sensitivity bug, now failing.

* Ensures extended name is treated case-insensitively. Tests now pass.
---
 src/CustomElements/register.js            | 4 ++++
 tests/CustomElements/js/customElements.js | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/src/CustomElements/register.js b/src/CustomElements/register.js
index e85eab4a5..881a1e767 100644
--- a/src/CustomElements/register.js
+++ b/src/CustomElements/register.js
@@ -91,6 +91,10 @@ function register(name, options) {
   }
   // record name
   definition.__name = name.toLowerCase();
+  // ensure extended name is also treated case-insensitively
+  if (definition.extends) {
+    definition.extends = definition.extends.toLowerCase();
+  }
   // ensure a lifecycle object so we don't have to null test it
   definition.lifecycle = definition.lifecycle || {};
   // build a list of ancestral custom elements (for native base detection)
diff --git a/tests/CustomElements/js/customElements.js b/tests/CustomElements/js/customElements.js
index d61f22790..91b58c7bd 100644
--- a/tests/CustomElements/js/customElements.js
+++ b/tests/CustomElements/js/customElements.js
@@ -183,9 +183,9 @@ suite('customElements', function() {
   });
 
   test('document.registerElement with type extension treats names as case insensitive', function() {
-    var proto = {prototype: Object.create(HTMLButtonElement.prototype), extends: 'button'};
+    var proto = {prototype: Object.create(HTMLButtonElement.prototype), extends: 'butTON'};
     proto.prototype.isXCase = true;
-    var XCase = document.registerElement('X-EXTEND-CASE', proto);
+    var XCase = document.registerElement('X-extend-CASE', proto);
     // createElement
     var x = document.createElement('button', 'X-EXTEND-CASE');
     assert.equal(x.isXCase, true);

From 60845b53cf8ac456b89aec9cca495aa3aedbb8e0 Mon Sep 17 00:00:00 2001
From: Daniel Freedman <dfreedm@google.com>
Date: Fri, 15 Apr 2016 14:17:37 -0700
Subject: [PATCH 8/8] prepare for release v0.7.22

---
 bower.json   | 2 +-
 package.json | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/bower.json b/bower.json
index 7603c35ef..925f321fc 100644
--- a/bower.json
+++ b/bower.json
@@ -1,7 +1,7 @@
 {
   "name": "webcomponentsjs",
   "main": "webcomponents.js",
-  "version": "0.7.21",
+  "version": "0.7.22",
   "homepage": "http://webcomponents.org",
   "authors": [
     "The Polymer Authors"
diff --git a/package.json b/package.json
index a67097631..670c5fbde 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "webcomponents.js",
-  "version": "0.7.21",
+  "version": "0.7.22",
   "description": "webcomponents.js",
   "main": "webcomponents.js",
   "directories": {