local html file with K3 browser

[Reeeder]

Has anybody found a way to run an html file that was copied in the /documents folder on the K3 with the experimental web browser?

From previous threads I found that with a K2, it was obviously possible to type 'file:///mnt/us/documents/' + the file name, however, the K3 (v3.1) only answers with 'Web browser cannot download files using this protocol. Only http: and https: protocols are supported.'

It won't help to rename the html file into a txt file in my case, since the html contains javascript which the browser supports but the reader software itself does not.

Thanks for any ideas!