I am trying to use Ecmascript 2015 for my project and I am finding it hard to add breakpoints at specific places (places I thought was logical to have a breakpoint).
I
Have you followed all the instructions here?
https://developer.chrome.com/devtools/docs/javascript-debugging#source-maps
Also, if you have enable harmony flag set, you won't need to use babeljs to transpile, Chrome will understand ES6/2015 or at least the subset it supports... so maybe turn off babeljs and avoid sourcemaps all together?