Express "write after end" on error in SQL query

[thomasswilliams]

If the SQL query errors, the default error function "fnOnError" ends the request (called from line 59). After the request is ended, any writes to the request cause an error - for example, line 62.

One fix would be to test for an error in the if statement on line 61.

[thomasswilliams]

Potential fix in https://github.com/thomasswilliams/express4-tedious/blob/issue_6/thomasswilliams/index.js