Chrome not loading CSS source maps?

When the CSS file has the sourcemapping embedded as base64, then it seems to work fine.

For example:

/*# sourceMappingURL=data:application/json;base64,eyJ2....5235== */

You can try the following steps:

1- delete the map file and regenerate it again.

2- Using the chrome inspector, go to Settings > General and then click on the button "Restore defaults and reload"