fix: check for undefined values

chrisguttandin · Apr 12, 2024 · 456b0b9 · 456b0b9
1 parent 8b4f969
commit 456b0b9
Showing 1 changed file with 5 additions and 2 deletions.
diff --git a/src/module.ts b/src/module.ts
@@ -65,9 +65,12 @@ export const deregister = async (port: MessagePort): Promise<void> => {
  await drgstr(port);
 
  const encoderRegex = ports.get(port);
- const index = encoderRegexes.indexOf(encoderRegex);
 
- encoderRegexes.splice(index, 1);
+ if (encoderRegex !== undefined) {
+ const index = encoderRegexes.indexOf(encoderRegex);
+
+ encoderRegexes.splice(index, 1);
+ }
 };
 
 export const isSupported = () => createIsSupportedPromise(window);