When trying to run the included Dockerfile, i get following error. any idea whats needs to be fixed.

Error: dcl start TextDecoder is not defined, run "dcl help start" for more info.
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! dcl-project@1.0.0 start: dcl start "--ci"
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the dcl-project@1.0.0 start script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in: