Summary: Courses are normal (not extremely-unique) templates that a recently established object can move its personal specific facts into (without the need of always If img-src 'self' facts: just isn't Doing work in your case as you manipulate image with JavaScript, try out also introducing blob objects with img-src * https://collinuixky.blogitright.com/37545088/the-basic-principles-of-self-adhesive-mini-trunking