Fix environment variable logic for dev_server options to allow falsey values (#1582)
Fix environment variable logic for dev_server options to allow falsey values (#1582)


rails/webpacker,gauravtiwari/webpacker,rails/webpacker,rossta/webpacker,rossta/webpacker,gauravtiwari/webpacker,gauravtiwari/webpacker,rossta/webpacker,rossta/webpacker