The filter "Mark as viewed" doesn't work properly, so here's a case
where the test would fail with JavaScript not because the test is wrong,
but due to a bug.
For now we're keeping the test as it was, but eventually we'll have to
fix the bug.
Using `have_current_path`, Capybara waits until the condition is true,
while using `include` the expectation is evaluated immediately and so
tests might fail when using a driver supporting JavaScript.
Besides, using `have_current_path` the error message is more readable
when the test fails.
