I just editted the file /etc/apparmor.d/abstractions/ubuntu-browsers, and there was already a line about chromium:
/usr/lib/chromium-browser/chromium-browser Ux,
However, according to `grep audit /var/log/kern.log`, /usr/bin/chromium-browser was blocked. So, I added the line
/usr/bin/chromium-browser Ux,
I just editted the file /etc/apparmor. d/abstractions/ ubuntu- browsers, and there was already a line about chromium: chromium- browser/ chromium- browser Ux,
/usr/lib/
However, according to `grep audit /var/log/kern.log`, /usr/bin/ chromium- browser was blocked. So, I added the line chromium- browser Ux,
/usr/bin/
and now Evince can open links correctly.