Support plan

• which support plan is this issue covered by? (e.g. Community, Core, Plus, or Enterprise): Community
• is this issue currently blocking your project? (yes/no): no
• is this issue affecting a production system? (yes/no): no

Context

• node version: 12.15.0
• module version: 19.1.1
• environment (e.g. node, browser, native): node
• used with (e.g. hapi application, another framework, standalone, ...):
• any other relevant information:

What problem are you trying to solve?

I'd like to set some standard headers in an onPreResponse handler, but only for responses where Content-Type is set to text/html. It seems that Hapi already knows the likely Content-Type (assuming later code doesn't change it) via the private _contentType property. I'm using it, but it would be nice if it were part of the public API.

Do you have a new or modified API suggestion to solve the problem?

Either expose the Content-Type publicly on the Response object or add it to response.headers. I should mention that my expectation prior to reading the docs was that response.headers['content-type'] would already be set.