Failed to get a proxied URL for the image - For my site. Please help me


#1

We have tried implementing Twitter cards for our site Smifu.com and received an error as below:

Failed to get a proxied URL for the image.

Our sample URL is listed below:
http://www.smifu.com/olympus-mzuiko-12-f2-silver.html

Someone please help us to fix this.


#2

Seems like a common error because of _ in image URLs.

Does twitter restrict _?