Update app.py

app.py

@@ -564,11 +564,11 @@ def create_image(url):
     #out.append(p.string) 
     with open("tmp.svg","w") as svg:
         svg.write(url)
-    cairosvg.svg2png(
-        url="tmp.svg", write_to="output.png")        
-    #output = cairosvg.svg2png(
-    #    bytestring=open('tmp.svg').read().encode('utf-8'))        
-    return 'output.png'
+    #cairosvg.svg2png(
+    #    url="tmp.svg", write_to="output.png")        
+    output = cairosvg.svg2png(
+        bytestring=open('tmp.svg').read().encode('utf-8'))        
+    return output
     
 score_js="""
 function(text_input) {