Extending User Interface with Widgets (e-learning) - PDFs don't advance progress
In the "Extending User Interface with Widgets" self-paced course of the e-learning, opening a PDF link doesn't advance the course progress, making it impossible to go further than 77% of advancement. 3 items are missing: the 2 PDFs and the award of completion itself.
This doesn't seem to be browser specific. I tried with Google Chrome (61.0.3163.100), Microsoft Edge (40.15063.0.0) and Mozilla Firefox (55.0.3).