Unexpected trimming of whitespace after loop

[mlafeldt]

Given a template like this:

{{#each routes}}
import { default as {{this.handler}} } from '{{this.file_path}}'
{{/each}}

addEventListener('fetch', (event) => {
  event.respondWith(handleEvent(event))
})

handlebars 4.1.3 will remove the empty line after the loop (in fact, it will remove all empty lines if there are any):

import { default as __hello_handler } from './hello.js'
import { default as __world_index_handler } from './world/index.js'
import { default as __index_handler } from './index.js'
addEventListener('fetch', (event) => {
  event.respondWith(handleEvent(event))
})

I'm wondering why that happens though? I don't use ~ or anything else that controls whitespace. My understanding is that rendering should not change any non-templating bits.

[mlafeldt]

Might be related to #468

[sunng87]

I can reproduce this issue. Thanks for reporting.

It has something to do with our empty line trimming strategy. We should trim at most one line. I will create a fix in days.

[sunng87]

Released in 4.1.4