If you are having trouble accessing our app, this means you probably have an ad blocker add-on that is preventing the structured data testing tool from opening up.
Unfortunately, our app is prevented from running if you have an ad-blocker.
Step 1: To fix this, just disable your ad-blockers. For Chrome users, click on Window, and then Extensions. Disable your extension from here.
Step 2: Refresh your validation page and try again. It should now work this time around.