Security, Site Health: Improve accuracy in messaging about HTTPS support.
Following up on [49904], this changeset focuses mainly on improving the guidance about the current state of HTTPS in Site Health.
- Correct the existing copy to indicate that both the Site Address and the WordPress Address need to be changed to fully switch to HTTPS.
- Link to the respective input fields via anchor links rather than to the overall General Settings screen.
- Show different copy if the site is using HTTPS for the WordPress Address (for example to have only the administration panel in HTTPS), but not for the Site Address.
- Inform the user about potential problems even when the site is already using HTTPS, for example if the SSL certificate was no longer valid.
- Always rely on fresh information for determining HTTPS support issues in Site Health, and therefore change the
https_status test to become asynchronous.
- Rename the new private
wp_is_owned_html_output() function to a more appropriate wp_is_local_html_output().
Props adamsilverstein, flixos90, johnjamesjacoby, timothyblynjacobs.
See #47577.