Auto-indentation for Meteor/spacebars

How do I get Emacs to auto-indent Spacebars blocks when coding with Meteor? Right now, Emacs automatically does this:

{{#each player}}
{{name}}
{{/each}}

instead of this:

{{#each player}}
    {{name}}
{{/each}}

Failing that, can I stop Emacs from deleting my indentation when I hit return? If I manually add indentation so that the code looks like the second example above, then hit return after {{name}}, it deletes the indentation so it looks like the first example.

Right now I’m using Emacs 25.2.2. I just use the basic GNU Emacs that I installed in Ubuntu 18.04, so I guess Vanilla Emacs. The major mode when I open html files is HTML.

I got a suggestion here to use web-mode.el, but I couldn’t figure out how to set it up for Meteor.

Thanks in advance for any help!