@gilboonet Thank you for the hint.
There are probably certain assumptions about running this example that i don't know of. Simply opening the example file in browser gives:
And no OpenJSCAD.org Logo appears as the title would make you think.
So does the example expect some environment?
It looks like it does - the url to the logo is examples/logo.jscad while examples is not a subdirectory of web but a neighbouring - directory changing the design-url to "../examples/logo.jscad" gives not different result though. So how does this example work?