更新前端静态网页获取方式，放弃使用后端获取api

frontend/node_modules/@surma/rollup-plugin-off-main-thread/tests/fixtures/assets-in-worker/entry.js

@@ -0,0 +1,17 @@
+/**
+ * Copyright 2018 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const w = new Worker("./worker.js");
+w.addEventListener("message", ev => {
+  window.parent.postMessage(ev.data, "*");
+});

frontend/node_modules/@surma/rollup-plugin-off-main-thread/tests/fixtures/assets-in-worker/rollup.config.js

@@ -0,0 +1,25 @@
+const MARKER = "my-special-import";
+module.exports = (config, outputOptions, omt) => {
+  config.plugins = [
+    omt(),
+    {
+      resolveId(id) {
+        if (id !== MARKER) {
+          return;
+        }
+        return id;
+      },
+      load(id) {
+        if (id !== MARKER) {
+          return;
+        }
+        const referenceId = this.emitFile({
+          type: "asset",
+          name: "my-asset.bin",
+          source: "assetcontent"
+        });
+        return `export default import.meta.ROLLUP_FILE_URL_${referenceId}`;
+      }
+    }
+  ];
+};

frontend/node_modules/@surma/rollup-plugin-off-main-thread/tests/fixtures/assets-in-worker/worker.js

@@ -0,0 +1,18 @@
+/**
+ * Copyright 2018 Google Inc. All Rights Reserved.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import url from "my-special-import";
+
+fetch(url)
+  .then(resp => resp.text())
+  .then(text => postMessage(text));