Working locally but not in Heroku

[mavericreal]

Hi,

We've followed the instructions by:

• adding the gem:
  gem 'mjml-rails'
• installing it
  bundle install

and creating the buildpacks. This is the output of heroku buildpacks:

1. heroku/nodejs
2. heroku/ruby

It works great locally, but when trying to run it in heroku, it does not raise any error, it simply sends the email in mjml markup, without being interpreted.

Any leads about why the mjml markup is not translated into html in heroku?

Thanks!

[sighmon]

@raulsann I've just updated the gem to use MJML v3, is there a chance your package.json file hasn't been updated?

...
"dependencies": {
    "mjml": "^3.0"
  },
...