According to HCL Case CS0008905, Notes 9.0.1 does not properly handle SNI SSL certificates. The problem can be recreated by using a browser (Chrome/Firefox/MS Edge) to load a page with images from a site that uses an SNI certificate, such as https://support.cloudflare.com/hc/en-us/articles/115001635128-Configuring-Rate-Limiting-from-the-Cloudflare-Dashboard. Although copy/paste of text from the browser to a Notes document works, attempting to copy/paste the images results in "Image or object not found on server" and a 'red-X'.
The push by Google for websites to support HTTPS will drive an increased usage of SNI certificates. Cloudflare provides a service where it provides SNI certificates for websites it hosts, increasing the number of websites affected.
This issue needs to be addressed as a default, not a feature request. Notes needs to support modern web technologies if it is to remain competitive.