Image Slider - "disables" the page after exiting full screen

Description

After exiting Image Slider's full screen mode the page gets disabled.

Issue is reported here: https://h5p.org/node/1048854/

Test Content: https://staging.halpet.eu/courses/osobni-razvoj-asertivnost/lessons/asertivno-agresivno-pasivno-ponasanje/topic/asertivnost-asertivno-agresivno-pasivno-ponasanje-learn/

Notes:

Username and password are in the ticket: 68765
I can only reproduce the scroll bar issue all links seems to work

Environment

Issue happens in Mozilla Firefox V 82.0

Acceptance Criteria

None

Assignee

Unassigned

Reporter

Bienvenido Villadelrey

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Funding

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Code reviewer

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Released

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Time tracking

0m

Time remaining

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Fix versions

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Priority

Medium