added handling for URL errors with images
added handling for URL errors with images

thelabnyc/wagtail_blog,CodedInternet/wagtail_blog,honewatson/wagtail_blog,juliomenendez/wagtail_blog,geminibleep/myblog,juliomenendez/wagtail_blog,CodedInternet/wagtail_blog,honewatson/wagtail_blog,geminibleep/myblog,thelabnyc/wagtail_blog