The size field shouldn't be required by default.
@@ -210,7 +210,8 @@ class ImageSearchQueryStringSerializer(serializers.Serializer):
size = serializers.CharField(
label='size',
help_text="A comma separated list of image sizes; available sizes"
- "include `small`, medium, or `large`."
+ "include `small`, medium, or `large`.",
+ required=False
)
qa = serializers.BooleanField(
label='quality_assurance',
