Try to make a Content Security Policy using the wizard at a great website called report-uri.com. This wizard will show you the detected items on a website. I let it ran for a week and the detected items contained also a lot of 'unsafe-inline', 'unsafe-eval' directives:
- default-src 'unsafe-inline'
- script-src-attr 'unsafe-inline'
- script-src-elem 'unsafe-inline'
- script-src 'unsafe-eval'
- script-src 'unsafe-inline'
- style-src-attr 'unsafe-inline'
- style-src-elem 'unsafe-inline'
- style-src 'unsafe-inline'
Thanks in advance!