Not Working in Chrome

First, make sure the issue is really browser vs. browser. Probably not, based on my experience. Usually, what I see is that you’re logged into Facebook in one browser and not the other and/or viewing the content via https vs. http between browsers. Facebook has been transitioning to having all logged in users browse in https.

My suspicion is that the issue is with your setup for https browsing of content and having that properly entered into the Facebook tool for registering apps and tabs. If you’re browsing Facebook in https mode and the content for your tab is not also available via https, it won’t be displayed or will cause browser errors.