I am using Google Chrome version 62.0.3202.94 and recently received this new error message in the developer console:
Cross-origin plugin content from must have a visible size larger than 400 x 300 pixels, or it will be blocked. Invisible content is always blocked.
Website: https://www.matheretter.de
Clicking on the error leads me to the first line of HTML: <!DOCTYPE html> , which does not help to track the problem.
Can anyone help?
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