[newgrounds] handle embeds without scheme (#1033)

CHANGELOG.md

@@ -1,5 +1,7 @@
 # Changelog
 
+## Unreleased
+
 ## 1.15.1 - 2020-10-11
 ### Additions
 - [hentaicafe] add `manga_id` metadata field ([#1036](https://github.com/mikf/gallery-dl/issues/1036))

gallery_dl/extractor/newgrounds.py

@@ -49,8 +49,8 @@ class NewgroundsExtractor(Extractor):
                         post["_comment"], 'data-smartload-src="', '"'), 1):
                     post["num"] = num
                     post["_index"] = "{}_{:>02}".format(post["index"], num)
-                    text.nameext_from_url(url, post)
-                    yield Message.Url, url, post
+                    url = text.ensure_http_scheme(url)
+                    yield Message.Url, url, text.nameext_from_url(url, post)
             else:
                 self.log.warning(
                     "Unable to get download URL for '%s'", post_url)

gallery_dl/version.py

@@ -6,4 +6,4 @@
 # it under the terms of the GNU General Public License version 2 as
 # published by the Free Software Foundation.
 
-__version__ = "1.15.1"
+__version__ = "1.15.2-dev"