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Created attachment 1272388 [details]
yelp showing error message after an attempt to load a html file

Description of problem:
Looks like the yelp help viewer can't open html files when called from command line with path to the file, eq.:

yelp index.html

Both relative and absolute paths return the same error. The same thing happens also for plain-text and asciidoc files. DocBook files are loaded and shown correctly.

Version-Release number of selected component (if applicable):
yelp-3.22.0-1

How reproducible:
always

Steps to Reproduce:
1. wget www.example.com
2. yelp index.html

Actual results:
Yelp reports an error:

"Unknown Error" & "URL cannot be shown" (As can be seen on the attached screenshot).

Expected results:
The HTML content is shown correctly.

Additional info:
I think this used to work in the 7.0 or 7.1 timeframe, as there are HTML placeholders in the Anaconda help system, which yelp used to be able to display, but can no longer do so.

This is probably fallout from the WebKit2 port of Yelp, and is likely related to URI handling. There is currently no upstream fix, and any fix would probably not be trivial.