HarmonyOS Web组件如何加载wasm文件

可以参考如下示例：

import webview from '@ohos.web.webview';

@Entry
@Component
struct MainPage {
  @State isLoading: boolean = true
  @State msg: string = ""
  controller: webview.WebviewController = new webview.WebviewController();

  aboutToAppear() {
    webview.WebviewController.setWebDebuggingAccess(true);
  }

  build() {
    Row() {
      Column() {
        Stack() {
          Web({ src: "https://xxx/index.html", controller:this.controller })
            .backgroundColor(Color.White)
            .multiWindowAccess(true)
            .javaScriptAccess(true)
            .geolocationAccess(true)
            .imageAccess(true)
            .onlineImageAccess(true)
            .domStorageAccess(true)
            .fileAccess(true)
            .mediaPlayGestureAccess(true)
            .mixedMode(MixedMode.All)
            .onAlert((event) => {
              return false
            })
            .onProgressChange((event) => {
              if (event?.newProgress == 100) {
                this.isLoading = false
              }
            })
            .onConsole((event) => {
              return false;
            })
            .onInterceptRequest((event) => {
              if (!event) {
                return;
              }
              let requestUrl:string = event.request.getRequestUrl();
              console.log('请求为：'+event.request.getRequestUrl())
              interface HtmlMimeType{
                type:string,
                mime:string
              }
              let typeArr :Array<HtmlMimeType> = [{
                type:".html",
                mime:"text/html"
              },{
                type:".js",
                mime:"text/javascript"
              },{
                type:".css",
                mime:"text/css"
              },{
                type:".wasm",
                mime:"application/wasm"
              }];
              let isSearch:boolean = false;
              let searchTypeObj : HtmlMimeType;
              for (const typeObj of typeArr) {
                let index:number = requestUrl.lastIndexOf(typeObj.type);
                if (index > 0) {
                  isSearch = true;
                  searchTypeObj = typeObj;
                  break;
                }
              }
              if (isSearch) {
                let rawfileName :string = requestUrl.replace("https://xxx/","");
                let endIndex = rawfileName.indexOf("?");
                if (endIndex > - 1) {//如果没去除，文件名会导致错误
                  rawfileName = rawfileName.substring(0,endIndex);
                }
                let response = new WebResourceResponse();
                response.setResponseData($rawfile(rawfileName));
                response.setResponseEncoding('utf-8');
                response.setResponseMimeType(searchTypeObj!.mime);
                response.setResponseCode(200);
                response.setReasonMessage('OK');
                response.setResponseIsReady(true);
                return response;
              }
              return null;
            })
            .width('100%')
            .height('100%')
            .backgroundColor("#ffeef5ee")

          if (this.isLoading) {
            LoadingProgress()
              .width(40)
              .height(40)
          }

        }
        .alignContent(Alignment.Center)
        .width('100%')
        .height('100%')
      }
    }
  }
}