Default accept header?

[g105b]

I'm thinking of changing the router's default content-type from text/html to application/json in WebEngine. You can configure this value in the config.ini for the application, but I think it makes more sense to use application/json as the default. Here's my justification:

When a user visits the application using their browser, the browser will always send the accept: text/html header - that's what browsers do. So we don't need to ever have a case that covers rendering a HTML page where the user has forgotten to send the correct accept header.

However, when you're using curl or other HTTP request tools, you're probably not going to want the HTML page. I would expect curl to make an API request rather than an HTML request, so a default of application/json makes sense for curl requests, but if I did want to download the HTML using curl, I could still set accept: text/html and get the HTML page routed, which is why I am voting that the default changes.

Does this decision make any sense?