"Uncaught (in promise) DOMException: The URI is malformed" while trying to run on Ubuntu docker

User Support Errors
1

I have installed and composed, started metasfresh docker on Ubuntu, all the dockers are created and started succesfully, but the Firefox webpage is empty, from the developer console I can see the following warnings and errors:

“ADVANCED_EDIT” uses already existing key combination “ALT+E” bundle-851de4722e00adcb9142-git-7432ace.js:192280
“FIRST_PAGE” uses already existing key combination “HOME” bundle-851de4722e00adcb9142-git-7432ace.js:192280
“LAST_PAGE” uses already existing key combination “END” bundle-851de4722e00adcb9142-git-7432ace.js:192280
“COMPLETE_STATUS” uses already existing key combination “ALT+U” bundle-851de4722e00adcb9142-git-7432ace.js:192280

metasfresh-webui-frontend build 7432ace

https://github.com/metasfresh/metasfresh/commit/7432ace

bundle-851de4722e00adcb9142-git-7432ace.js:166405
Uncaught (in promise) DOMException: The URI is malformed. bundle-851de4722e00adcb9142-git-7432ace.js:103286
Uncaught (in promise) DOMException: The URI is malformed. bundle-851de4722e00adcb9142-git-7432ace.js:103286
Uncaught (in promise) DOMException: The URI is malformed. bundle-851de4722e00adcb9142-git-7432ace.js:103286

I am learning Metasfresh in most likely I will trace and correct this myself, but to speed things up - maybe there is already ready solution for this?

2

I got MF from github, loaded all the Node dependencies and tried to run MF without backed and there is nothing displayed (just white browser page), but web console shows that there is content indeed, it is just broken down etc. Of course, there should be an error in this case because the backend is not available, but such unavailability is possible and it should be handled gracefully - by displaying meaningful GUI and not the blank screen with invisible content.

Is this a known problem for MF and maybe I can take this issues as my first effort to correct?