Safety check for customelements.define

thomasloven · Dec 27, 2023 · bb1612b · bb1612b
1 parent fd5aa3e
commit bb1612b
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Showing 3 changed files with 7 additions and 3 deletions.
diff --git a/card-mod.js b/card-mod.js
diff --git a/src/card-mod.ts b/src/card-mod.ts
@@ -236,7 +236,9 @@ export class CardMod extends LitElement {
 }
 
 (async () => {
-  customElements.define("card-mod", CardMod);
+  if (!customElements.get("card-mod")) {
+    customElements.define("card-mod", CardMod);
+  }
 
   // Wait for scoped customElements registry to be set up
   // and then redefine card-mod if necessary

diff --git a/src/mod-card.ts b/src/mod-card.ts
@@ -83,7 +83,9 @@ class ModCard extends LitElement {
 
 (async () => {
   // See explanation in card-mod.ts
-  customElements.define("mod-card", ModCard);
+  if (!customElements.get("mod-card")) {
+    customElements.define("mod-card", ModCard);
+  }
   while (customElements.get("home-assistant") === undefined)
     await new Promise((resolve) => window.setTimeout(resolve, 100));