Don't transmit keys used for scrolling

Author: Andrews54757

chrome/content.js

@@ -993,6 +993,10 @@ if (is_url_yt(window.location.href)) {
     'KeyC', // captions
   ];
 
+  const TransmitBlacklist = [
+    'ArrowUp', 'ArrowDown', // Scroll
+  ];
+
   document.addEventListener('keydown', (e) => {
     if (isActiveElementEditable()) {
       return;
@@ -1002,6 +1006,10 @@ if (is_url_yt(window.location.href)) {
       return;
     }
 
+    if (TransmitBlacklist.includes(e.code)) {
+      return;
+    }
+
     chrome.runtime.sendMessage({
       type: 'transmit_key',
       key: getKeyString(e),