Archives (34 articles)

Express.js error: Cannot set headers after they are sent to the client

Find out how to debug `ERR_HTTP_HEADERS_SENT: Cannot set headers` after they are sent to the client in Express.js server.

No match error when testing an Express.js controller doing multiple calls to a same backend

Find out how to solve `ERR_NOCK_NO_MATCH` error occurring when mocking multiple calls to same backend.

How to repurpose a 2006 Macbook into a Linux laptop

Learn how to install Lubuntu 16.04 on a 2006 Macbook.

Invalid file mode error when deploying a Node.js application to Cloud Foundry

Find out how to get rid of Cloud Foundry `Failed: The resource file mode is invalid` issue.

Create a pull/merge request starting from your terminal

A quick tip on how to create a pull/merge request with the git CLI in your terminal.