Answering my own posting: This is the error:
Refused to load plugin data from 'https://www.acme.com/page.pdf' because it violates the following Content Security Policy directive: "object-src 'none'".
Removed that from the csp config and now it works.
after i turn on VPN i stuck on infinite loading tab.
I have been waiting for this to come for a year already. I haven't really found a smart way of using Ecosia without going to its website first.
The whole idea of using Ecosia is to produce less carbon emission (by using renewable energy sources) and to use the money to help forests. If I have to first type/search for Ecosia (an extra search/energy consumption), it loses partly its purpose.
Then, you would try asking to their Social media managers, I've found them some time ago on the Opera website if I'm not wrong.
On the Forum, even for questions about the browser itself are no official answers.