REPORT-83708 fix: worker对safari浏览器12以下版本做处理

src/core/platform/web/function.js

@@ -125,5 +125,17 @@ BI._.extend(BI, {
             }
         }
         return false;
+    },
+
+    getSafariVersion: function () {
+        if (!_global.navigator) {
+            return 0;
+        }
+        var agent = navigator.userAgent.toLowerCase();
+        var version = agent.match(/version\/([\d.]+)/);
+        if (version && version[1]) {
+            return version[1] * 1;
+        }
+        return 0;
     }
 });

typescript/core/platform/web/function.ts

@@ -9,4 +9,5 @@ export type _function = {
   isMac: () => boolean;
   isWindows: () => boolean;
   isSupportCss3: (style: any) => boolean;
+  getSafariVersion: () => number;
 }

typescript/core/worker/controller/worker.main_thread.controller.ts

@@ -10,9 +10,10 @@ export class WorkerMainThreadController extends WorkerBaseController {
 
     /**
      * 是否支持 new Worker, 默认为 Wroker Class 是否实现
+     * 由于Blob url支持度问题  规避Safari 12以下版本
      */
 
-    public canNewWorker: boolean = WorkerMainThreadController.hasWorkerClass;
+    public canNewWorker: boolean = WorkerMainThreadController.hasWorkerClass && !(BI.isSafari() && BI.getSafariVersion() < 12);
 
     /**
      * 主线程 new Worker 起始时刻