Fix/es5

.babelrc

@@ -0,0 +1,7 @@
+{
+  "presets": [["@babel/env", {
+    "targets": {
+      "browsers": ["> 0.5%"]
+    }
+  }]]
+}

.gitignore

@@ -8,7 +8,7 @@
 babel.babel
 TODO.md
 examples/basic/index.debug.html
-
+dist/*
 # To store secret credentials
 *.secret.js
 

package.json

@@ -58,10 +58,7 @@
         "node": ">=12.0.0"
     },
     "browserslist": [
-        "> 1%",
-        "last 2 versions",
-        "maintained node versions",
-        "not dead"
+        "> 0.5%"
     ],
     "author": "Arno Gourdol <[email protected]>",
     "contributors": [
@@ -84,6 +81,8 @@
         "paosder <[email protected]>"
     ],
     "devDependencies": {
+        "@babel/cli": "7.12.1",
+        "@babel/preset-env": "7.12.1",
         "@babel/types": "^7.12.6",
         "@cortex-js/prettier-config": "^1.0.0",
         "@rollup/plugin-node-resolve": "^10.0.0",
@@ -93,6 +92,7 @@
         "@typescript-eslint/eslint-plugin": "^4.7.0",
         "@typescript-eslint/parser": "^4.7.0",
         "@typescript-eslint/typescript-estree": "^4.7.0",
+        "acorn-private-class-elements": "0.2.7",
         "autoprefixer": "^9.8.6",
         "check-node-version": "^4.0.3",
         "cssnano": "^4.1.10",

rollup.config.js

@@ -189,7 +189,7 @@ const ROLLUP = [
                   {
                       format: 'umd',
                       name: 'MathLive',
-                      file: `${BUILD_DIRECTORY}/mathlive.js`,
+                      file: `${BUILD_DIRECTORY}/mathlive.es6.js`,
                       sourcemap: !PRODUCTION,
                       exports: 'named',
                   },
@@ -256,7 +256,7 @@ if (PRODUCTION) {
             {
                 format: 'umd',
                 name: 'MathLive',
-                file: `${BUILD_DIRECTORY}/mathlive.min.js`,
+                file: `${BUILD_DIRECTORY}/mathlive.min.es6.js`,
                 sourcemap: false,
             },
         ],

scripts/build.sh

@@ -92,6 +92,10 @@ else
     printf "\033[32m ● \033[0m Making a \033[33m%s\033[0m build" "$BUILD"
     npx rollup --silent --config 
     echo -e "\033[2K\033[80D\033[32m ✔ \033[33m" $BUILD "\033[0m build done"
+
+    printf "\033[32m ● \033[0m Making a \033[33m%s\033[0m build es5 " "$BUILD"
+    npx babel -o dist/mathlive.js dist/mathlive.es6.js
+    echo -e "\033[2K\033[80D\033[32m ✔ \033[33m" $BUILD "\033[0m build es5 done"
 
     if [ "$BUILD" = "production" ]; then
         # Optimize CSS