I am writing an E2E test for our application. On one page there is a canvas that is showing a PDF file. The test case is show this page, scroll to the bottom of the PDF and check if the button under the canvas is no longer disabled. Imagine a common licence agreements window in some application or software installation.
The problem is I have no idea how to scroll down in said canvas. It is not in iframe, so I cant switch into it. Functions provided by CodeceptJS scrolls only on the page and not on the canvas.
Has anyone did something familiar and know how to do this?