Add Promise polyfill for IE

.gitmodules

@@ -3,7 +3,7 @@
 	url = https://github.com/getkirby/kirby.git
 [submodule "site/patterns"]
 	path = site/patterns
-	url = https://git.codesignd.com/sites/patterns.git
+	url = cddgit@git.codesignd.com:sites/patterns.git
 [submodule "site/plugins/cachebuster"]
 	path = site/plugins/cachebuster
 	url = https://github.com/getkirby-plugins/cachebuster-plugin.git

package-lock.json

@@ -4571,6 +4571,11 @@
 			"integrity": "sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M=",
 			"dev": true
 		},
+		"promise-polyfill": {
+			"version": "8.1.0",
+			"resolved": "https://registry.npmjs.org/promise-polyfill/-/promise-polyfill-8.1.0.tgz",
+			"integrity": "sha512-OzSf6gcCUQ01byV4BgwyUCswlaQQ6gzXc23aLQWhicvfX9kfsUiUhgt3CCQej8jDnl8/PhGF31JdHX2/MzF3WA=="
+		},
 		"pseudomap": {
 			"version": "1.0.2",
 			"resolved": "https://registry.npmjs.org/pseudomap/-/pseudomap-1.0.2.tgz",

package.json

@@ -9,6 +9,7 @@
 		"element-closest": "2.0.2",
 		"flexismooth": "1.0.0",
 		"prismjs": "1.15.0",
+		"promise-polyfill": "8.1.0",
 		"whatwg-fetch": "3.0.0"
 	},
 	"devDependencies": {

site/patterns

@@ -1 +1 @@
-Subproject commit 69b3f079ead4316d4cfbdf29a8c3d10dfa98bf61
+Subproject commit 66862856e4823590c5658f5cc43666673db2856b