I get a "Source code not available error" whenever i try to extract from source an Html5 source file.
Note that when i change its extention to .php or try to extract from any php file, the existing source code is extracted without errors. Unfortunately, that option is not viable.
Here is the Catalogue properties where the source file paths are configured :
This is the resulting error when trying to extract the source code so that it can be translated in poedit: