fix: compatibility of safari (#802)

* chore: add telemetry in demo

* fix: compatibility of safari

Dockerfile.demo

@@ -11,6 +11,7 @@ RUN ["pip", "install", "--disable-pip-version-check", "--find-links=dist", "visu
 WORKDIR /home/visualdl/frontend
 ENV SCOPE server
 ENV PUBLIC_PATH /paddle/visualdl/demo
+ENV TELEMETRY_ID b281676ad3824647971c6fd92d65f642
 RUN ["./scripts/install.sh"]
 RUN ["./scripts/build.sh"]
 

frontend/packages/core/.browserslistrc

+supports es6-module

frontend/packages/core/babel.config.js

 module.exports = {
     extends: '@snowpack/app-scripts-react/babel.config.json',
-    plugins: ['styled-components']
+    presets: [
+        [
+            '@babel/preset-env',
+            {
+                targets: {
+                    esmodules: true
+                },
+                bugfixes: true,
+                modules: false
+            }
+        ]
+    ],
+    plugins: ['styled-components', '@babel/plugin-proposal-class-properties']
 };

frontend/packages/core/package.json

@@ -67,6 +67,8 @@
     },
     "devDependencies": {
         "@babel/core": "7.11.6",
+        "@babel/plugin-proposal-class-properties": "7.10.4",
+        "@babel/preset-env": "7.11.5",
         "@babel/preset-react": "7.10.4",
         "@snowpack/app-scripts-react": "1.10.0",
         "@snowpack/plugin-dotenv": "2.0.1",