SpeechRecognition在Windows 10的Chrome版本60上始终被阻止

我已经使用webkitSpeechRecognition构建了一个应用程序。录制音频没问题，一切正常，直到Chrome更新为60.SpeechRecognition在Windows 10的Chrome版本60上始终被阻止

该错误仅在Windows 10上发生，但不会在MacOS上进行相同的更新。（将Chrome 59更新为Chrome 60）

当我尝试使用lib时，它给出错误“not-allowed”。我已经管理Chrome设置并将其设置为always ask for permission，但结果为always block。所以Chrome上的错误依然存在，Chrome浏览器不允许应用程序使用麦克风设置。

在Chrome 59（Windows 10）上，此行为不会发生！

这里是用来调用API的角度语音业务：

import { UserService } from './user.service'; 
import { Injectable, NgZone } from '@angular/core'; 
import { Observable } from 'rxjs/Rx'; 


interface IWindow extends Window { 
    webkitSpeechRecognition: any; 
    SpeechRecognition: any; 
} 

@Injectable() 
export class SpeechRecognitionService { 
    speechRecognition: any; 
    _me: any; 

    constructor(private userService: UserService, private zone: NgZone) { 
     this._me = userService.profile; 
    } 

    record(): Observable<string> { 

     return Observable.create(observer => { 
      const { webkitSpeechRecognition }: IWindow = <IWindow>window; 
      this.speechRecognition = new webkitSpeechRecognition(); 
      this.speechRecognition.continuous = false; 
      // this.speechRecognition.interimResults = true; 
      this.speechRecognition.lang = this._me.lang; 
      this.speechRecognition.maxAlternatives = 1; 

      this.speechRecognition.onresult = speech => { 
       let term = ''; 
       if (speech.results) { 
        const result = speech.results[speech.resultIndex]; 
        const transcript = result[0].transcript; 
        if (result.isFinal) { 
         if (result[0].confidence < 0.3) { 
          console.log('Unrecognized result - Please try again'); 
         } else { 
          term = transcript.trim(); 
          console.log('Did you said? -> ' + term + ' , If not then say something else...'); 
         } 
        } 
       } 
       this.zone.run(() => { 
        observer.next(term); 
       }); 
      }; 

      this.speechRecognition.onerror = error => { 
       observer.error(error); 
      }; 

      this.speechRecognition.onend =() => { 
       observer.complete(); 
      }; 

      this.speechRecognition.start(); 
      console.log('Say something - We are listening !!!'); 
     }); 
    } 


    stop() { 
     if (this.speechRecognition) { 
      this.speechRecognition.stop(); 
     } 
    } 

}

这里使用Chrome 60