Fixed url escaping for good ;)

api/funkwhale_api/music/spa_views.py

+import urllib.parse
+
 from django.conf import settings
 from django.urls import reverse
 
@@ -58,6 +60,7 @@ def library_track(request, pk):
                 "content": utils.join_url(settings.FUNKWHALE_URL, obj.listen_url),
             }
         )
+
         metas.append(
             {
                 "tag": "link",
@@ -65,7 +68,7 @@ def library_track(request, pk):
                 "type": "application/json+oembed",
                 "href": (
                     utils.join_url(settings.FUNKWHALE_URL, reverse("api:v1:oembed"))
-                    + "?url={}&format=json".format(track_url)
+                    + "?format=json&url={}".format(urllib.parse.quote_plus(track_url))
                 ),
             }
         )
@@ -124,7 +127,7 @@ def library_album(request, pk):
                 "type": "application/json+oembed",
                 "href": (
                     utils.join_url(settings.FUNKWHALE_URL, reverse("api:v1:oembed"))
-                    + "?url={}&format=json".format(album_url)
+                    + "?format=json&url={}".format(urllib.parse.quote_plus(album_url))
                 ),
             }
         )

api/tests/music/test_spa_views.py

+import urllib.parse
+
 from django.urls import reverse
 
 from funkwhale_api.common import utils
@@ -61,8 +63,8 @@ def test_library_track(spa_html, no_api_auth, client, factories, settings):
             "type": "application/json+oembed",
             "href": (
                 utils.join_url(settings.FUNKWHALE_URL, reverse("api:v1:oembed"))
-                + "?url={}&format=json".format(
-                    utils.join_url(settings.FUNKWHALE_URL, url)
+                + "?format=json&url={}".format(
+                    urllib.parse.quote_plus(utils.join_url(settings.FUNKWHALE_URL, url))
                 )
             ),
         },
@@ -115,8 +117,8 @@ def test_library_album(spa_html, no_api_auth, client, factories, settings):
             "type": "application/json+oembed",
             "href": (
                 utils.join_url(settings.FUNKWHALE_URL, reverse("api:v1:oembed"))
-                + "?url={}&format=json".format(
-                    utils.join_url(settings.FUNKWHALE_URL, url)
+                + "?format=json&url={}".format(
+                    urllib.parse.quote_plus(utils.join_url(settings.FUNKWHALE_URL, url))
                 )
             ),
         },