Limit passive listeners to the specific types that Chrome >= 57 makes passive by default.

app/ux/WebView.js

@@ -453,9 +453,12 @@ Ext.define('Rambox.ux.WebView',{
 				let passive_event_listeners = Ext.getStore('ServicesList').getById(me.record.get('type')).get('passive_event_listeners');
 				if (passive_event_listeners && me.record.get('passive_event_listeners'))
 				{
-					// 3rdparty: This uses npm 'default-passive-events' 1.0.10 inline. Link to license:
-					// https://github.com/zzarcon/default-passive-events/blob/master/LICENSE
-					const passive_event_listeners_code = `const eventListenerOptionsSupported=()=>{let supported=!1;try{const opts=Object.defineProperty({},"passive",{get(){supported=!0}});window.addEventListener("test",null,opts),window.removeEventListener("test",null,opts)}catch(e){}return supported},defaultOptions={passive:!0,capture:!1},supportedPassiveTypes=["scroll","wheel","touchstart","touchmove","touchenter","touchend","touchleave","mouseout","mouseleave","mousemove","mouseenter","mousewheel","mouseover"],getDefaultPassiveOption=(passive,eventName)=>void 0!==passive?passive:-1!==supportedPassiveTypes.indexOf(eventName)&&defaultOptions.passive,getWritableOptions=options=>{const passiveDescriptor=Object.getOwnPropertyDescriptor(options,"passive");return passiveDescriptor&&!0!==passiveDescriptor.writable&&void 0===passiveDescriptor.set?Object.assign({},options):options},overwriteAddEvent=superMethod=>{EventTarget.prototype.addEventListener=function(type,listener,options){const usesListenerOptions="object"==typeof options&&null!==options,useCapture=usesListenerOptions?options.capture:options;options=usesListenerOptions?getWritableOptions(options):{},options.passive=getDefaultPassiveOption(options.passive,type),options.capture=void 0===useCapture?defaultOptions.capture:useCapture,superMethod.call(this,type,listener,options)},EventTarget.prototype.addEventListener._original=superMethod},supportsPassive=eventListenerOptionsSupported();if(supportsPassive){const addEvent=EventTarget.prototype.addEventListener;overwriteAddEvent(addEvent)}`;
+					/* 3rdparty: This uses npm 'default-passive-events' 1.0.10 inline. Link to license:
+					* https://github.com/zzarcon/default-passive-events/blob/master/LICENSE
+					* Modified to remove unnecessary event hooks.
+					* This should match behavior of Chrome >= 57.
+					*/
+					const passive_event_listeners_code = `const eventListenerOptionsSupported=()=>{let supported=!1;try{const opts=Object.defineProperty({},"passive",{get(){supported=!0}});window.addEventListener("test",null,opts),window.removeEventListener("test",null,opts)}catch(e){}return supported},defaultOptions={passive:!0,capture:!1},supportedPassiveTypes=["scroll","wheel","touchstart","touchmove","mousewheel"],getDefaultPassiveOption=(passive,eventName)=>void 0!==passive?passive:-1!==supportedPassiveTypes.indexOf(eventName)&&defaultOptions.passive,getWritableOptions=options=>{const passiveDescriptor=Object.getOwnPropertyDescriptor(options,"passive");return passiveDescriptor&&!0!==passiveDescriptor.writable&&void 0===passiveDescriptor.set?Object.assign({},options):options},overwriteAddEvent=superMethod=>{EventTarget.prototype.addEventListener=function(type,listener,options){const usesListenerOptions="object"==typeof options&&null!==options,useCapture=usesListenerOptions?options.capture:options;options=usesListenerOptions?getWritableOptions(options):{},options.passive=getDefaultPassiveOption(options.passive,type),options.capture=void 0===useCapture?defaultOptions.capture:useCapture,superMethod.call(this,type,listener,options)},EventTarget.prototype.addEventListener._original=superMethod},supportsPassive=eventListenerOptionsSupported();if(supportsPassive){const addEvent=EventTarget.prototype.addEventListener;overwriteAddEvent(addEvent)}`;
 					js_inject += '{' + passive_event_listeners_code + '}';
 				}