NoneDownloader should handle only protocols that are 100% not processed by a simple downloader

boards/models/attachment/downloaders.py

@@ -88,15 +88,7 b' class YouTubeDownloader(Downloader):'
 class NothingDownloader(Downloader):
     @staticmethod
     def handles(url: str) -> bool:
-        if REGEX_MAGNET.match(url):
-            return True
-
-        response_head = requests.head(url, verify=False)
-        if response_head.status_code == HTTP_RESULT_OK:
-            content_type = response_head.headers[HEADER_CONTENT_TYPE].split(';')[0]
-            return content_type in TYPE_URL_ONLY
-        else:
-            return False
+        return REGEX_MAGNET.match(url)
 
     @staticmethod
     def download(url: str):