Merge pull request #18892 from ischurov/master

timhoffm · web-flow · commit 51845778746c · 2020-11-13T00:08:57.000+01:00
Fixes MIME type for svg frame_format in HTMLWriter.
diff --git a/lib/matplotlib/animation.py b/lib/matplotlib/animation.py
@@ -767,6 +767,9 @@ def _included_frames(paths, frame_format):
 
 def _embedded_frames(frame_list, frame_format):
     """frame_list should be a list of base64-encoded png files"""
+    if frame_format == 'svg':
+        # Fix MIME type for svg
+        frame_format = 'svg+xml'
     template = '  frames[{0}] = "data:image/{1};base64,{2}"\n'
     return "\n" + "".join(
         template.format(i, frame_format, frame_data.replace('\n', '\\\n'))
