The EditSubpages extension restricts anonymous users from editing most pages. As such as the webdriver.io spec tests in mediawiki/core fail due to a permission error. https://www.mediawiki.org/wiki/Extension:EditSubpages
```
User
✓ should be able to create account
✓ should be able to log in
✓ should be able to change preferences
1) Page should be creatable:
An element could not be located on the page using the given search parameters ("#wpTextbox1").
2) Page should be re-creatable:
An element could not be located on the page using the given search parameters ("#wpTextbox1").
3) Page should be editable:
invalid element state: Element must be user-editable in order to clear it.
```
https://integration.wikimedia.org/ci/job/quibble-vendor-mysql-php70-docker/5253/
Assuming the extensions tests are run first and that we have admin rights on the wiki, we should be able to whitelist a few pages to allow edition. The [[ https://www.mediawiki.org/wiki/Extension:EditSubpages | wiki page ]] mentions whitelisting them in `[[MediaWiki:Unlockedpages]]`.