- Bug #13300: Allow pjax with "data-pjax" with no value in `yii.js`.
- Bug #13307: Preventing of race conditions in script filter in `yii.js` works incorrectly.
- Bug #13310: Handle relative and absolute URLs coincidence in CSS filter in `yii.js`.
- Bug #13312: `skipOuterContainers` option was incorrectly passed to pjax in `handleAction` in `yii.js`.
- Partially fixes#13299.
Adds tests for #8014, #11921, #10974, #11494, #10358, #10097.