From 89f30dae3692fd8d013bd33f0342c7d58f195aea Mon Sep 17 00:00:00 2001
From: Tim Gates <tim.gates@iress.com>
Date: Mon, 6 Apr 2020 20:45:27 +1000
Subject: [PATCH 01/14] docs: Fix simple typo, specificy -> specify (#4637)

---
 site/content/docs/03-run-time.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/site/content/docs/03-run-time.md b/site/content/docs/03-run-time.md
index 0bbae24185..85661bd3b9 100644
--- a/site/content/docs/03-run-time.md
+++ b/site/content/docs/03-run-time.md
@@ -804,7 +804,7 @@ You can see a full example on the [animations tutorial](tutorial/animate)
 
 ### `svelte/easing`
 
-Easing functions specificy the rate of change over time and are useful when working with Svelte's built-in transitions and animations as well as the tweened and spring utilities. `svelte/easing` contains 31 named exports, a `linear` ease and 3 variants of 10 different easing functions: `in`, `out` and `inOut`.
+Easing functions specify the rate of change over time and are useful when working with Svelte's built-in transitions and animations as well as the tweened and spring utilities. `svelte/easing` contains 31 named exports, a `linear` ease and 3 variants of 10 different easing functions: `in`, `out` and `inOut`.
 
 You can explore the various eases using the [ease visualiser](examples#easing) in the [examples section](examples).
 

From 085897c799dba914e553fcfac83aa3416ab23bef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=98=D0=B3=D0=BE=D1=80=D1=8C=20=D0=A4=D1=80=D0=BE=D0=BB?=
 =?UTF-8?q?=D0=BE=D0=B2?= <imfrolov@gmail.com>
Date: Mon, 6 Apr 2020 14:01:02 +0300
Subject: [PATCH 02/14] feat(internal): Support globalThis in modern
 environments (#4628)

---
 src/runtime/internal/globals.ts | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/runtime/internal/globals.ts b/src/runtime/internal/globals.ts
index 664093d2e4..b97f81ab9f 100644
--- a/src/runtime/internal/globals.ts
+++ b/src/runtime/internal/globals.ts
@@ -1,3 +1,7 @@
 declare const global: any;
 
-export const globals = (typeof window !== 'undefined' ? window : global) as unknown as typeof globalThis;
+export const globals = (typeof window !== 'undefined'
+	? window
+	: typeof globalThis !== 'undefined'
+	? globalThis
+	: global) as unknown as typeof globalThis;

From d7497deaecc043f799ce81bb86298010605d2b99 Mon Sep 17 00:00:00 2001
From: Conduitry <git@chor.date>
Date: Mon, 6 Apr 2020 07:04:40 -0400
Subject: [PATCH 03/14] update changelog

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbab1872dc..80db122cb6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## Unreleased
 
+* Try using `globalThis` rather than `globals` for the benefit of non-Node servers and web workers ([#3561](https://github.com/sveltejs/svelte/issues/3561), [#4545](https://github.com/sveltejs/svelte/issues/4545))
 * Fix attaching of JS debugging comments to HTML comments ([#4565](https://github.com/sveltejs/svelte/issues/4565))
 
 ## 3.20.1

From df3ae85b42b6fa2d6a07cdb1073c9ebd8c9f8a71 Mon Sep 17 00:00:00 2001
From: Robin Cussol <RobinCsl@users.noreply.github.com>
Date: Tue, 7 Apr 2020 15:30:33 +0200
Subject: [PATCH 04/14] fix(examples): use correct URL for Ask HN posts (#4640)

---
 .../examples/21-miscellaneous/01-hacker-news/Item.svelte    | 6 ++++--
 .../examples/21-miscellaneous/01-hacker-news/Summary.svelte | 6 ++++--
 2 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/site/content/examples/21-miscellaneous/01-hacker-news/Item.svelte b/site/content/examples/21-miscellaneous/01-hacker-news/Item.svelte
index e9cd617e96..802ab437f7 100644
--- a/site/content/examples/21-miscellaneous/01-hacker-news/Item.svelte
+++ b/site/content/examples/21-miscellaneous/01-hacker-news/Item.svelte
@@ -3,6 +3,8 @@
 
 	export let item;
 	export let returnTo;
+
+	$: url = !item.domain ? `https://news.ycombinator.com/${item.url}` : item.url;
 </script>
 
 <style>
@@ -24,7 +26,7 @@
 <a href={returnTo}>&laquo; back</a>
 
 <article>
-	<a href="{item.url}">
+	<a href="{url}">
 		<h1>{item.title}</h1>
 		<small>{item.domain}</small>
 	</a>
@@ -36,4 +38,4 @@
 	{#each item.comments as comment}
 		<Comment {comment}/>
 	{/each}
-</div>
\ No newline at end of file
+</div>
diff --git a/site/content/examples/21-miscellaneous/01-hacker-news/Summary.svelte b/site/content/examples/21-miscellaneous/01-hacker-news/Summary.svelte
index 0ff25964f7..311d01c24e 100644
--- a/site/content/examples/21-miscellaneous/01-hacker-news/Summary.svelte
+++ b/site/content/examples/21-miscellaneous/01-hacker-news/Summary.svelte
@@ -7,6 +7,8 @@
 		const c = item.comments_count;
 		return `${c} ${c === 1 ? 'comment' : 'comments'}`;
 	}
+
+	$: url = item.type === "ask" ? `https://news.ycombinator.com/${item.url}` : item.url;
 </script>
 
 <style>
@@ -33,6 +35,6 @@
 
 <article>
 	<span>{i + offset + 1}</span>
-	<h2><a target="_blank" href={item.url}>{item.title}</a></h2>
+	<h2><a target="_blank" href={url}>{item.title}</a></h2>
 	<p class="meta"><a href="#/item/{item.id}">{comment_text()}</a> by {item.user} {item.time_ago}</p>
-</article>
\ No newline at end of file
+</article>

From ece61381debfb7053605264cbc681119dfd43b2f Mon Sep 17 00:00:00 2001
From: Robin Cussol <RobinCsl@users.noreply.github.com>
Date: Tue, 7 Apr 2020 15:30:48 +0200
Subject: [PATCH 05/14] fix(examples): hide "undefined" domain in HN example
 (#4643)

* fix(examples): hide "undefined" domain in HN example

This commit introduces a null-undefined check against the domain of the HN items in the Hacker News example.

* Update site/content/examples/21-miscellaneous/01-hacker-news/Item.svelte

Co-Authored-By: Antony Jones <ant@enzy.org>

Co-authored-by: Antony Jones <ant@enzy.org>
---
 .../examples/21-miscellaneous/01-hacker-news/Item.svelte      | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/site/content/examples/21-miscellaneous/01-hacker-news/Item.svelte b/site/content/examples/21-miscellaneous/01-hacker-news/Item.svelte
index 802ab437f7..608d04e497 100644
--- a/site/content/examples/21-miscellaneous/01-hacker-news/Item.svelte
+++ b/site/content/examples/21-miscellaneous/01-hacker-news/Item.svelte
@@ -28,7 +28,9 @@
 <article>
 	<a href="{url}">
 		<h1>{item.title}</h1>
-		<small>{item.domain}</small>
+		{#if item.domain}
+			<small>{item.domain}</small>
+		{/if}
 	</a>
 
 	<p class="meta">submitted by {item.user} {item.time_ago}

From 7dcbc5173bb8ea453566aacee7ba8926941ddc75 Mon Sep 17 00:00:00 2001
From: pushkin <mtrelis@outlook.com>
Date: Tue, 7 Apr 2020 15:31:44 +0200
Subject: [PATCH 06/14] remove unused variable (#4638)

---
 src/compiler/compile/Component.ts | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/src/compiler/compile/Component.ts b/src/compiler/compile/Component.ts
index ae2c4b704a..bb1546ceee 100644
--- a/src/compiler/compile/Component.ts
+++ b/src/compiler/compile/Component.ts
@@ -1216,7 +1216,6 @@ export default class Component {
 		});
 
 		const lookup = new Map();
-		let seen;
 
 		unsorted_reactive_declarations.forEach(declaration => {
 			declaration.assignees.forEach(name => {
@@ -1251,28 +1250,19 @@ export default class Component {
 		}
 
 		const add_declaration = declaration => {
-			if (this.reactive_declarations.indexOf(declaration) !== -1) {
-				return;
-			}
-
-			seen.add(declaration);
-
+			if (this.reactive_declarations.includes(declaration)) return;
+			
 			declaration.dependencies.forEach(name => {
 				if (declaration.assignees.has(name)) return;
 				const earlier_declarations = lookup.get(name);
 				if (earlier_declarations)
-					earlier_declarations.forEach(declaration => {
-						add_declaration(declaration);
-					});
+					earlier_declarations.forEach(add_declaration);
 			});
 
 			this.reactive_declarations.push(declaration);
 		};
 
-		unsorted_reactive_declarations.forEach(declaration => {
-			seen = new Set();
-			add_declaration(declaration);
-		});
+		unsorted_reactive_declarations.forEach(add_declaration);
 	}
 
 	warn_if_undefined(name: string, node, template_scope: TemplateScope) {

From 1087e31059fa51050b70ed1ee1acea8560d93da5 Mon Sep 17 00:00:00 2001
From: Conduitry <git@chor.date>
Date: Sat, 11 Apr 2020 07:40:35 -0400
Subject: [PATCH 07/14] site: bump @sveltejs/svelte-repl

---
 site/package-lock.json | 25 ++++++++++++++++---------
 site/package.json      |  2 +-
 2 files changed, 17 insertions(+), 10 deletions(-)

diff --git a/site/package-lock.json b/site/package-lock.json
index 7ac3211a7e..68fcf1f289 100644
--- a/site/package-lock.json
+++ b/site/package-lock.json
@@ -1291,13 +1291,14 @@
       }
     },
     "@sveltejs/svelte-repl": {
-      "version": "0.1.17",
-      "resolved": "https://registry.npmjs.org/@sveltejs/svelte-repl/-/svelte-repl-0.1.17.tgz",
-      "integrity": "sha512-rM0DC+pZnqwH6PiuxXUmFRwYZ9XNkexxTNt+prR91Qs7ssxGgf0QkH6kGivSNLbrOtOvcgJbt1nUDybWra5HKA==",
+      "version": "0.1.18",
+      "resolved": "https://registry.npmjs.org/@sveltejs/svelte-repl/-/svelte-repl-0.1.18.tgz",
+      "integrity": "sha512-b1psPdlJ9qRqn28l+sPSma6OSfilue0dGK4BcS75MOsfdjZjSvsc0AIAoriQ3q1mB/frCoyUri6nxFGgEKv0iQ==",
       "dev": true,
       "requires": {
         "codemirror": "^5.49.2",
         "estree-walker": "^0.9.0",
+        "marked": "^0.8.2",
         "sourcemap-codec": "^1.4.6",
         "svelte-json-tree": "0.0.5",
         "yootils": "0.0.16"
@@ -1309,10 +1310,16 @@
           "integrity": "sha512-12U47o7XHUX329+x3FzNVjCx3SHEzMF0nkDv7r/HnBzX/xNTKxajBk6gyygaxrAFtLj39219oMfbtxv4KpaOiA==",
           "dev": true
         },
+        "marked": {
+          "version": "0.8.2",
+          "resolved": "https://registry.npmjs.org/marked/-/marked-0.8.2.tgz",
+          "integrity": "sha512-EGwzEeCcLniFX51DhTpmTom+dSA/MG/OBUDjnWtHbEnjAH180VzUeAw+oE4+Zv+CoYBWyRlYOTR0N8SO9R1PVw==",
+          "dev": true
+        },
         "sourcemap-codec": {
-          "version": "1.4.6",
-          "resolved": "https://registry.npmjs.org/sourcemap-codec/-/sourcemap-codec-1.4.6.tgz",
-          "integrity": "sha512-1ZooVLYFxC448piVLBbtOxFcXwnymH9oUF8nRd3CuYDVvkRBxRl6pB4Mtas5a4drtL+E8LDgFkQNcgIw6tc8Hg==",
+          "version": "1.4.8",
+          "resolved": "https://registry.npmjs.org/sourcemap-codec/-/sourcemap-codec-1.4.8.tgz",
+          "integrity": "sha512-9NykojV5Uih4lgo5So5dtw+f0JgJX30KCNI8gwhz2J9A15wD0Ml6tjHKwf6fTSa6fAdVBdZeNOs9eJ71qCk8vA==",
           "dev": true
         }
       }
@@ -1594,9 +1601,9 @@
       "dev": true
     },
     "codemirror": {
-      "version": "5.49.2",
-      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.49.2.tgz",
-      "integrity": "sha512-dwJ2HRPHm8w51WB5YTF9J7m6Z5dtkqbU9ntMZ1dqXyFB9IpjoUFDj80ahRVEoVanfIp6pfASJbOlbWdEf8FOzQ==",
+      "version": "5.52.2",
+      "resolved": "https://registry.npmjs.org/codemirror/-/codemirror-5.52.2.tgz",
+      "integrity": "sha512-WCGCixNUck2HGvY8/ZNI1jYfxPG5cRHv0VjmWuNzbtCLz8qYA5d+je4QhSSCtCaagyeOwMi/HmmPTjBgiTm2lQ==",
       "dev": true
     },
     "color-convert": {
diff --git a/site/package.json b/site/package.json
index 5ff40e1153..057d9f9adf 100644
--- a/site/package.json
+++ b/site/package.json
@@ -36,7 +36,7 @@
     "@babel/runtime": "^7.6.0",
     "@sindresorhus/slugify": "^0.9.1",
     "@sveltejs/site-kit": "^1.1.4",
-    "@sveltejs/svelte-repl": "^0.1.17",
+    "@sveltejs/svelte-repl": "^0.1.18",
     "degit": "^2.1.4",
     "dotenv": "^8.1.0",
     "esm": "^3.2.25",

From 7be80e96c610930823fdc49a622e1f0089907fcf Mon Sep 17 00:00:00 2001
From: Ademola <ooade96@gmail.com>
Date: Sun, 12 Apr 2020 18:17:54 +0100
Subject: [PATCH 08/14] docs: make text node type in example more explicit
 (#4663)

---
 .../tutorial/10-transitions/05-custom-js-transitions/text.md  | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/site/content/tutorial/10-transitions/05-custom-js-transitions/text.md b/site/content/tutorial/10-transitions/05-custom-js-transitions/text.md
index da775bbeb3..cc25861c7b 100644
--- a/site/content/tutorial/10-transitions/05-custom-js-transitions/text.md
+++ b/site/content/tutorial/10-transitions/05-custom-js-transitions/text.md
@@ -8,7 +8,7 @@ While you should generally use CSS for transitions as much as possible, there ar
 function typewriter(node, { speed = 50 }) {
 	const valid = (
 		node.childNodes.length === 1 &&
-		node.childNodes[0].nodeType === 3
+		node.childNodes[0].nodeType === Node.TEXT_NODE
 	);
 
 	if (!valid) {
@@ -26,4 +26,4 @@ function typewriter(node, { speed = 50 }) {
 		}
 	};
 }
-```
\ No newline at end of file
+```

From 8ddb0731996a7afba1cbbd18483ed6fce02e03d8 Mon Sep 17 00:00:00 2001
From: John Abraham <31211464+dravog7@users.noreply.github.com>
Date: Sun, 12 Apr 2020 22:55:32 +0530
Subject: [PATCH 09/14] docs: add note to tutorial on Capitalised component
 variable names (#4505)

---
 .../tutorial/01-introduction/05-nested-components/text.md     | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/site/content/tutorial/01-introduction/05-nested-components/text.md b/site/content/tutorial/01-introduction/05-nested-components/text.md
index f1406f93db..078413cc92 100644
--- a/site/content/tutorial/01-introduction/05-nested-components/text.md
+++ b/site/content/tutorial/01-introduction/05-nested-components/text.md
@@ -19,4 +19,6 @@ Add a `<script>` tag that imports `Nested.svelte`...
 <Nested/>
 ```
 
-Notice that even though `Nested.svelte` has a `<p>` element, the styles from `App.svelte` don't leak in.
\ No newline at end of file
+Notice that even though `Nested.svelte` has a `<p>` element, the styles from `App.svelte` don't leak in.
+
+Also notice that the component name `Nested` is capitalised. This convention has been adopted to allow us to differentiate between user-defined components and regular HTML tags.

From 0d263cc1ea56b119f6d158655686011546652367 Mon Sep 17 00:00:00 2001
From: Conduitry <git@chor.date>
Date: Sun, 12 Apr 2020 13:30:39 -0400
Subject: [PATCH 10/14] docs: use Node.TEXT_NODE in more places

---
 site/content/docs/02-template-syntax.md                       | 2 +-
 .../09-transitions/04-custom-js-transitions/App.svelte        | 4 ++--
 .../10-transitions/05-custom-js-transitions/app-b/App.svelte  | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/site/content/docs/02-template-syntax.md b/site/content/docs/02-template-syntax.md
index ea36474bed..04764d0601 100644
--- a/site/content/docs/02-template-syntax.md
+++ b/site/content/docs/02-template-syntax.md
@@ -893,7 +893,7 @@ A custom transition function can also return a `tick` function, which is called
 	function typewriter(node, { speed = 50 }) {
 		const valid = (
 			node.childNodes.length === 1 &&
-			node.childNodes[0].nodeType === 3
+			node.childNodes[0].nodeType === Node.TEXT_NODE
 		);
 
 		if (!valid) return {};
diff --git a/site/content/examples/09-transitions/04-custom-js-transitions/App.svelte b/site/content/examples/09-transitions/04-custom-js-transitions/App.svelte
index 3b3fb94d1c..396c793639 100644
--- a/site/content/examples/09-transitions/04-custom-js-transitions/App.svelte
+++ b/site/content/examples/09-transitions/04-custom-js-transitions/App.svelte
@@ -4,7 +4,7 @@
 	function typewriter(node, { speed = 50 }) {
 		const valid = (
 			node.childNodes.length === 1 &&
-			node.childNodes[0].nodeType === 3
+			node.childNodes[0].nodeType === Node.TEXT_NODE
 		);
 
 		if (!valid) {
@@ -33,4 +33,4 @@
 	<p in:typewriter>
 		The quick brown fox jumps over the lazy dog
 	</p>
-{/if}
\ No newline at end of file
+{/if}
diff --git a/site/content/tutorial/10-transitions/05-custom-js-transitions/app-b/App.svelte b/site/content/tutorial/10-transitions/05-custom-js-transitions/app-b/App.svelte
index 3b3fb94d1c..396c793639 100644
--- a/site/content/tutorial/10-transitions/05-custom-js-transitions/app-b/App.svelte
+++ b/site/content/tutorial/10-transitions/05-custom-js-transitions/app-b/App.svelte
@@ -4,7 +4,7 @@
 	function typewriter(node, { speed = 50 }) {
 		const valid = (
 			node.childNodes.length === 1 &&
-			node.childNodes[0].nodeType === 3
+			node.childNodes[0].nodeType === Node.TEXT_NODE
 		);
 
 		if (!valid) {
@@ -33,4 +33,4 @@
 	<p in:typewriter>
 		The quick brown fox jumps over the lazy dog
 	</p>
-{/if}
\ No newline at end of file
+{/if}

From cc3c7fa9f4ab4ce627daf21945d3ec0c2b2c3b63 Mon Sep 17 00:00:00 2001
From: Daniel Imfeld <daniel@danielimfeld.com>
Date: Sat, 18 Apr 2020 00:38:36 -1000
Subject: [PATCH 11/14] docs: fix CSS typo in example (#4685)

---
 .../content/examples/03-logic/04-keyed-each-blocks/App.svelte | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/site/content/examples/03-logic/04-keyed-each-blocks/App.svelte b/site/content/examples/03-logic/04-keyed-each-blocks/App.svelte
index cd12eed954..2868f90536 100644
--- a/site/content/examples/03-logic/04-keyed-each-blocks/App.svelte
+++ b/site/content/examples/03-logic/04-keyed-each-blocks/App.svelte
@@ -18,7 +18,7 @@
 	Remove first thing
 </button>
 
-<div style="display: grid; grid-template-columns: 1fr 1fr; grip-gap: 1em">
+<div style="display: grid; grid-template-columns: 1fr 1fr; grid-gap: 1em">
 	<div>
 		<h2>Keyed</h2>
 		{#each things as thing (thing.id)}
@@ -32,4 +32,4 @@
 			<Thing current={thing.color}/>
 		{/each}
 	</div>
-</div>
\ No newline at end of file
+</div>

From ff5f25249e39985b6ca88c6815d123f26e40402a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maur=C3=ADcio=20Kishi?= <mrkishi@users.noreply.github.com>
Date: Mon, 20 Apr 2020 10:05:37 -0300
Subject: [PATCH 12/14] support dimension bindings in cross-origin mode (#2989)

---
 .../render_dom/wrappers/Element/index.ts      |  2 +-
 src/runtime/internal/dom.ts                   | 74 ++++++++++++-------
 test/js/samples/bind-width-height/expected.js |  2 +-
 test/js/samples/video-bindings/expected.js    |  2 +-
 .../binding-width-height-a11y/_config.js      |  6 +-
 5 files changed, 55 insertions(+), 31 deletions(-)

diff --git a/src/compiler/compile/render_dom/wrappers/Element/index.ts b/src/compiler/compile/render_dom/wrappers/Element/index.ts
index 9291f329b6..64d02191fb 100644
--- a/src/compiler/compile/render_dom/wrappers/Element/index.ts
+++ b/src/compiler/compile/render_dom/wrappers/Element/index.ts
@@ -586,7 +586,7 @@ export default class ElementWrapper extends Wrapper {
 					);
 
 					block.chunks.destroy.push(
-						b`${resize_listener}.cancel();`
+						b`${resize_listener}();`
 					);
 				} else {
 					block.event_listeners.push(
diff --git a/src/runtime/internal/dom.ts b/src/runtime/internal/dom.ts
index 9ab9a4395f..bf8fc1f5a0 100644
--- a/src/runtime/internal/dom.ts
+++ b/src/runtime/internal/dom.ts
@@ -57,7 +57,7 @@ export function empty() {
 	return text('');
 }
 
-export function listen(node: Node, event: string, handler: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions | EventListenerOptions) {
+export function listen(node: EventTarget, event: string, handler: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions | EventListenerOptions) {
 	node.addEventListener(event, handler, options);
 	return () => node.removeEventListener(event, handler, options);
 }
@@ -234,37 +234,61 @@ export function select_multiple_value(select) {
 	return [].map.call(select.querySelectorAll(':checked'), option => option.__value);
 }
 
-export function add_resize_listener(element, fn) {
-	if (getComputedStyle(element).position === 'static') {
-		element.style.position = 'relative';
+// unfortunately this can't be a constant as that wouldn't be tree-shakeable
+// so we cache the result instead
+let crossorigin: boolean;
+
+export function is_crossorigin() {
+	if (crossorigin === undefined) {
+		crossorigin = false;
+
+		try {
+			if (typeof window !== 'undefined' && window.parent) {
+				void window.parent.document;
+			}
+		} catch (error) {
+			crossorigin = true;
+		}
 	}
 
-	const object = document.createElement('object');
-	object.setAttribute('style', 'display: block; position: absolute; top: 0; left: 0; height: 100%; width: 100%; overflow: hidden; pointer-events: none; z-index: -1;');
-	object.setAttribute('aria-hidden', 'true');
-	object.type = 'text/html';
-	object.tabIndex = -1;
+	return crossorigin;
+}
 
-	let win;
+export function add_resize_listener(node: HTMLElement, fn: () => void) {
+	const computed_style = getComputedStyle(node);
+	const z_index = (parseInt(computed_style.zIndex) || 0) - 1;
 
-	object.onload = () => {
-		win = object.contentDocument.defaultView;
-		win.addEventListener('resize', fn);
-	};
+	if (computed_style.position === 'static') {
+		node.style.position = 'relative';
+	}
 
-	if (/Trident/.test(navigator.userAgent)) {
-		element.appendChild(object);
-		object.data = 'about:blank';
+	const iframe = element('iframe');
+	iframe.setAttribute('style',
+		`display: block; position: absolute; top: 0; left: 0; width: 100%; height: 100%; ` +
+		`overflow: hidden; border: 0; opacity: 0; pointer-events: none; z-index: ${z_index};`
+	);
+	iframe.setAttribute('aria-hidden', 'true');
+	iframe.tabIndex = -1;
+
+	let unsubscribe: () => void;
+
+	if (is_crossorigin()) {
+		iframe.src = `data:text/html,<script>onresize=function(){parent.postMessage(0,'*')}</script>`;
+		unsubscribe = listen(window, 'message', (event: MessageEvent) => {
+			if (event.source === iframe.contentWindow) fn();
+		});
 	} else {
-		object.data = 'about:blank';
-		element.appendChild(object);
+		iframe.src = 'about:blank';
+		iframe.onload = () => {
+			unsubscribe = listen(iframe.contentWindow, 'resize', fn);
+		};
 	}
 
-	return {
-		cancel: () => {
-			win && win.removeEventListener && win.removeEventListener('resize', fn);
-			element.removeChild(object);
-		}
+	append(node, iframe);
+
+	return () => {
+		detach(iframe);
+		if (unsubscribe) unsubscribe();
 	};
 }
 
@@ -316,4 +340,4 @@ export class HtmlTag {
 	d() {
 		this.n.forEach(detach);
 	}
-}
\ No newline at end of file
+}
diff --git a/test/js/samples/bind-width-height/expected.js b/test/js/samples/bind-width-height/expected.js
index 5c1888b7db..4848704c4b 100644
--- a/test/js/samples/bind-width-height/expected.js
+++ b/test/js/samples/bind-width-height/expected.js
@@ -30,7 +30,7 @@ function create_fragment(ctx) {
 		o: noop,
 		d(detaching) {
 			if (detaching) detach(div);
-			div_resize_listener.cancel();
+			div_resize_listener();
 		}
 	};
 }
diff --git a/test/js/samples/video-bindings/expected.js b/test/js/samples/video-bindings/expected.js
index 3cad17b34d..9c5467e1a0 100644
--- a/test/js/samples/video-bindings/expected.js
+++ b/test/js/samples/video-bindings/expected.js
@@ -59,7 +59,7 @@ function create_fragment(ctx) {
 		o: noop,
 		d(detaching) {
 			if (detaching) detach(video);
-			video_resize_listener.cancel();
+			video_resize_listener();
 			run_all(dispose);
 		}
 	};
diff --git a/test/runtime/samples/binding-width-height-a11y/_config.js b/test/runtime/samples/binding-width-height-a11y/_config.js
index 5ab4a7ade7..93856bf0f6 100644
--- a/test/runtime/samples/binding-width-height-a11y/_config.js
+++ b/test/runtime/samples/binding-width-height-a11y/_config.js
@@ -1,8 +1,8 @@
 export default {
 	async test({ assert, target }) {
-		const object = target.querySelector('object');
+		const iframe = target.querySelector('iframe');
 
-		assert.equal(object.getAttribute('aria-hidden'), "true");
-		assert.equal(object.getAttribute('tabindex'), "-1");
+		assert.equal(iframe.getAttribute('aria-hidden'), "true");
+		assert.equal(iframe.getAttribute('tabindex'), "-1");
 	}
 };

From fe003b57cb3076c1fc7d94b45a79ff397733186a Mon Sep 17 00:00:00 2001
From: Conduitry <git@chor.date>
Date: Mon, 20 Apr 2020 09:08:16 -0400
Subject: [PATCH 13/14] update changelog

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80db122cb6..dbad13d01f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 ## Unreleased
 
+* Support dimension bindings in cross-origin environments ([#2147](https://github.com/sveltejs/svelte/issues/2147))
 * Try using `globalThis` rather than `globals` for the benefit of non-Node servers and web workers ([#3561](https://github.com/sveltejs/svelte/issues/3561), [#4545](https://github.com/sveltejs/svelte/issues/4545))
 * Fix attaching of JS debugging comments to HTML comments ([#4565](https://github.com/sveltejs/svelte/issues/4565))
 

From 77ec48debaf99e33197729d3c739d888aa7654d4 Mon Sep 17 00:00:00 2001
From: Tan Li Hau <tanhauhau@users.noreply.github.com>
Date: Mon, 20 Apr 2020 21:27:21 +0800
Subject: [PATCH 14/14] add await catch shorthand (#4490)

---
 CHANGELOG.md                                  |  1 +
 src/compiler/parse/state/mustache.ts          | 10 +++++
 .../samples/await-catch-shorthand/_config.js  | 41 +++++++++++++++++++
 .../samples/await-catch-shorthand/main.svelte |  7 ++++
 .../await-shorthand-no-then/input.svelte      |  7 ++++
 .../await-shorthand-no-then/warnings.json     |  1 +
 6 files changed, 67 insertions(+)
 create mode 100644 test/runtime/samples/await-catch-shorthand/_config.js
 create mode 100644 test/runtime/samples/await-catch-shorthand/main.svelte
 create mode 100644 test/validator/samples/await-shorthand-no-then/input.svelte
 create mode 100644 test/validator/samples/await-shorthand-no-then/warnings.json

diff --git a/CHANGELOG.md b/CHANGELOG.md
index dbad13d01f..ca47ad51b7 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,7 @@
 
 * Support dimension bindings in cross-origin environments ([#2147](https://github.com/sveltejs/svelte/issues/2147))
 * Try using `globalThis` rather than `globals` for the benefit of non-Node servers and web workers ([#3561](https://github.com/sveltejs/svelte/issues/3561), [#4545](https://github.com/sveltejs/svelte/issues/4545))
+* Support `{#await ... catch ...}` syntax shorthand ([#3623](https://github.com/sveltejs/svelte/issues/3623))
 * Fix attaching of JS debugging comments to HTML comments ([#4565](https://github.com/sveltejs/svelte/issues/4565))
 
 ## 3.20.1
diff --git a/src/compiler/parse/state/mustache.ts b/src/compiler/parse/state/mustache.ts
index 28ef853f8e..0f6608f679 100644
--- a/src/compiler/parse/state/mustache.ts
+++ b/src/compiler/parse/state/mustache.ts
@@ -309,6 +309,13 @@ export default function mustache(parser: Parser) {
 			parser.allow_whitespace();
 		}
 
+		const await_block_catch_shorthand = !await_block_shorthand && type === 'AwaitBlock' && parser.eat('catch');
+		if (await_block_catch_shorthand) {
+			parser.require_whitespace();
+			block.error = parser.read_destructure_pattern();
+			parser.allow_whitespace();
+		}
+
 		parser.eat('}', true);
 
 		parser.current().children.push(block);
@@ -319,6 +326,9 @@ export default function mustache(parser: Parser) {
 			if (await_block_shorthand) {
 				block.then.skip = false;
 				child_block = block.then;
+			} else if (await_block_catch_shorthand) {
+				block.catch.skip = false;
+				child_block = block.catch;
 			} else {
 				block.pending.skip = false;
 				child_block = block.pending;
diff --git a/test/runtime/samples/await-catch-shorthand/_config.js b/test/runtime/samples/await-catch-shorthand/_config.js
new file mode 100644
index 0000000000..2e1574145f
--- /dev/null
+++ b/test/runtime/samples/await-catch-shorthand/_config.js
@@ -0,0 +1,41 @@
+let fulfil;
+
+let thePromise = new Promise(f => {
+	fulfil = f;
+});
+
+export default {
+	props: {
+		thePromise
+	},
+
+	html: ``,
+
+	test({ assert, component, target }) {
+		fulfil(42);
+
+		return thePromise
+			.then(() => {
+				assert.htmlEqual(target.innerHTML, ``);
+
+				let reject;
+
+				thePromise = new Promise((f, r) => {
+					reject = r;
+				});
+
+				component.thePromise = thePromise;
+
+				assert.htmlEqual(target.innerHTML, ``);
+
+				reject(new Error('something broke'));
+
+				return thePromise.catch(() => {});
+			})
+			.then(() => {
+				assert.htmlEqual(target.innerHTML, `
+					<p>oh no! something broke</p>
+				`);
+			});
+	}
+};
\ No newline at end of file
diff --git a/test/runtime/samples/await-catch-shorthand/main.svelte b/test/runtime/samples/await-catch-shorthand/main.svelte
new file mode 100644
index 0000000000..844e7da08c
--- /dev/null
+++ b/test/runtime/samples/await-catch-shorthand/main.svelte
@@ -0,0 +1,7 @@
+<script>
+	export let thePromise;
+</script>
+
+{#await thePromise catch theError}
+	<p>oh no! {theError.message}</p>
+{/await}
\ No newline at end of file
diff --git a/test/validator/samples/await-shorthand-no-then/input.svelte b/test/validator/samples/await-shorthand-no-then/input.svelte
new file mode 100644
index 0000000000..6e8a99f131
--- /dev/null
+++ b/test/validator/samples/await-shorthand-no-then/input.svelte
@@ -0,0 +1,7 @@
+<script>
+	let promise;
+</script>
+
+{#await promise catch error}
+	<p>Error: {error}</p>
+{/await}
diff --git a/test/validator/samples/await-shorthand-no-then/warnings.json b/test/validator/samples/await-shorthand-no-then/warnings.json
new file mode 100644
index 0000000000..fe51488c70
--- /dev/null
+++ b/test/validator/samples/await-shorthand-no-then/warnings.json
@@ -0,0 +1 @@
+[]