Some minor improvements and fixes have been made. The MP4Upload extractor is guaranteed to return the correct url unless changes happen to the mp4upload site. An SSL error can occur when an attempt is made to download from the url in the HTTPDownloader class though I believe that is an issue involving said class as this extractor is correctly getting the url for now.
For now I've mostly noticed the SSL error problem when trying to download through masterani as the urls that are extracted from it seem to require that. Though works just fine with animepahe. To test you can just run this command in python to see correct link resolving `MP4Upload('https://mp4upload.com/embed-dz2jeya02ace.html').stream_url` which is for an embed link from masterani.