* The zero state image is purely decorative so there's no need to
set a non-empty alt text for it.
* The presentation role is also unnecessary for decorative image with
empty alt.
* Accessibility Behat tests added to cover changes
* The zero state image is purely decorative so there's no need to
set a non-empty alt text for it.
* The presentation role is also unnecessary for decorative image with
empty alt.
* Accessibility Behat tests added to cover changes
* An image with non-empty alt text should not have a presentation role.
* An empty alt attribute is sufficient for decorative images. No need to
add a presentation role for them.
* Additionally, if there is already text that is present for an image,
there's no need to add an alt text with the same text. Such images are
decorative and should just have an empty alt text.
If $CFG->enable_read_only_sessions_debug was not enabled, debugging could be
enabled part-way through a request when restart_with_write_lock was
called. This meant that a diff between the initial and final session
would be made during write_close(), although the intial session state
was never captured. This generated false positives in the logs, and it
thought any variable set in the session was a change from the original
value.
This ensures that debugging is enabled before the debug flag is allowed
to change, preventing false positives.
Also added @runInSeparateProcess on each session Redis cluster test to let the test run
in a separate process to avoid the error "the headers are not already sent" by PHPUnit.
This was always bad, but since we only used it to verify the existence
of the param, and let library code take $_REQUEST for the real
validation, it was ok. Now, since we're redirecting to self during
necessary cookie checks added by MDL-80835, we lose the real value
originally stored in $_REQUEST. This patch just fixes the param type,
setting it to raw, which is what it should have used originally. The
raw value won't be cast from a string to an int as part of the
require_param call, so the value won't be lost any more.
Two new hooks are introduced to allow plugins to add their own user tour
filters.
Separate hooks are identified for both clientside, and serverside
filters.
