Rails 5 Heroku deploy error: ExecJS::ProgramError: SyntaxError: Unexpected token: name (autoRegisterNamespace)

Question

When trying to deploy a rails 5 app to heroku, I get the following error, when it reaches Running: rake assets:precompile:

remote:        ExecJS         


        

Answer 1

Seems to be some issues with newer ES syntax. Backtick's also won't pre-compile.

my example:

http://localhost:3000//${bike_file}.html

I changed to

"http://localhost:3000//" + bike_file + ".html"