I've read some article or question said "sourcemap will be downloaded only when devtool is opened"
When do browsers download sourcemaps?
https://css-tricks.com/should-i-use-source-maps-in-production/
There's no hit on performance (source maps don't get loaded unless you have DevTools open
But, I am using a tool called Sentry, and it call show me the original error with original code call stacks when it receives errors
So what is the actual behavior when we ship sourcemap file and open the webpage inside mobile browser ?