gluon-web-osm third-party-file error (openlayers js/css-files)

[wolf128058]

package/gluon-web-osm/luasrc/usr/lib/lua/gluon/web/model/osm.lua points to
DEFAULT_URL = 'https://cdn.rawgit.com/openlayers/openlayers.github.io/master/en/v5.2.0' (+ filename of css/js-file)

And there we meet the message
"Package size exceeded the configured limit of 50 MB. Try https://github.com/openlayers/openlayers.github.io/tree/master/en/v5.2.0 instead." instead of the desired Files.
And mismatching the MIME-Types expecting css/js-stuff creates further debugging-error messages.

Trying another Tag/Release of the openlayers-stuff or trying to use another cdn-hoster could solve this problem.