ES6 to ES5 packages

gistfile1.txt

 i solved the same issue recently for this module and others like --> ngx translate and more...

solution (compile the js files into es2015):

npm i --save -dev babel-cli babel-preset-es2015

add this to the root project under the name .babelrc
{ "presets": ["es2015"] }

add a npm script in package.json in "scrtipsts" scope
"compile_@agm_core": "babel node_modules/@agm/core -d node_modules/@agm/core --presets es2015",

add a postinstall script in package.json in "scrtipsts" scope
"postinstall": "npm run compile_@agm_core",

run npm i to install the deps. After installing the deps, the script postinstall will run and babel will compile the targeted js files

run your server and should world

Give me please feedback if it works. I did the same thins for more than 3 npm modules it works on my machine :D