Remove stack traces from production errors.

[STRML]

No description provided.

[bajtos]

While this is a good short-term solution, it would be better to provide a configuration option so that users can use different means to turn off stack traces.

[bajtos]

Never mind, Raymond have already commented in the same spirit :)

[bajtos]

BTW accessing the stack trace is AFAIK expensive operation, as the .stack property is lazily evaluated on the first access. This code may perform better:

varstackEnabled=process.env.NODE_ENV!=='production';for(varpropinerr){if(prop==='stack'&&!stackEnabled)continue;data[prop]=err[prop];}if(!stackEnabled){// by default, Error.stack is non-enumerabledata.stack=err.stack;}