Added polyfills for unfetch, URL, Object.entries and Element.scrollTo

src/assets/javascripts/bundle.ts

@@ -20,7 +20,6 @@
  * IN THE SOFTWARE.
  */
 
-import "focus-visible"
 import {
   EMPTY,
   NEVER,
@@ -78,6 +77,7 @@ import {
   patchScrollfix,
   patchScrolllock
 } from "./patches"
+import "./polyfills"
 
 /* ----------------------------------------------------------------------------
  * Application

src/assets/javascripts/components/palette/index.ts

@@ -117,8 +117,7 @@ export function mountPalette(
 
       /* Set color palette */
       for (const [key, value] of Object.entries(palette.color))
-        if (typeof value === "string")
-          document.body.setAttribute(`data-md-color-${key}`, value)
+        document.body.setAttribute(`data-md-color-${key}`, value)
 
       /* Toggle visibility */
       for (let index = 0; index < inputs.length; index++) {

src/assets/javascripts/polyfills/index.ts

@@ -0,0 +1,55 @@
+/*
+ * Copyright (c) 2016-2021 Martin Donath <martin.donath@squidfunk.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to
+ * deal in the Software without restriction, including without limitation the
+ * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+ * sell copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+import "focus-visible"
+import "unfetch/polyfill"
+import "url-polyfill"
+
+/* ----------------------------------------------------------------------------
+ * Custom polyfills
+ * ------------------------------------------------------------------------- */
+
+/* Polyfill for `Object.entries` */
+if (!Object.entries)
+  Object.entries = function (obj: object) {
+    const data: [string, string][] = []
+    for (const key of Object.keys(obj))
+      // @ts-expect-error - ignore property access warning
+      data.push([key, obj[key]])
+
+    /* Return entries */
+    return data
+  }
+
+/* Polyfill for `Element.scrollTo` */
+if (!Element.prototype.scrollTo)
+  Element.prototype.scrollTo = function (
+    x?: ScrollToOptions | number, y?: number
+  ): void {
+    if (typeof x === "object") {
+      this.scrollLeft = x.left!
+      this.scrollTop = x.top!
+    } else {
+      this.scrollLeft = x!
+      this.scrollTop = y!
+    }
+  }