Facebook has apologized for banning a photo of a plus-sized model and telling Australian Feminist group Cherchez la Femme that the reason was because the photo depicted "body parts in an undesirable manner".  The ad was un-banned after an outcry.

The ad in question featured size-26 Model Tess Holliday wearing a bikini.  Cherchez la Femme intended the photo to advertise an event called "Feminism and Fat".   Ms. Holliday is an outspoken advocate for body acceptance.  After the group took its fight public last week in a Facebook post, the social network relented Monday and said the ad was in compliance with the company's ad guidelines.

"Our team processes millions of advertising images each week, and in some instances we incorrectly prohibit ads," read a statement from the giant social network.  "This image does not violate our ad policies.  We apologize for the error and have let the advertiser know we are approving their ad."

This is not the first time Facebook has come under fire for its uneven censorship of photos.  In March, the site faced backlash when it concluded that a photograph of topless Aboriginal women in ceremonial paint as part of a protest violated "community standards".  Critics pointed out that Facebook in the past has allowed photos of celebrities like Kim Kardashian wearing nothing but paint.