Merge pull request #534 from martijnthe/fix-529-svg-embedded-data-uri…

…-image

Bugfix: handle SVGs containing images embedded as data URIs

weasyprint/images.py

@@ -121,7 +121,9 @@ def __init__(self, svg_data, base_url, url_fetcher):
 
     def _cairosvg_url_fetcher(self, src, mimetype):
         data = self._url_fetcher(src)
-        return data.get('string', data['file_obj'].read())
+        if 'string' in data:
+            return data['string']
+        return data['file_obj'].read()
 
     def get_intrinsic_size(self, _image_resolution, font_size):
         # Vector images may be affected by the font size.