search

uwex-learning-tech / sbplus-v3

Storybook Plus is a web application for delivering multimedia presentations.
https://media.uwex.edu/our-work/application-showcase/the-storybook-player
GNU General Public License v3.0
2 stars 1 forks source link

Black box in presentation #107

Open Lin87 opened 3 years ago

Lin87 commented 3 years ago

Does not always happen. May be related to improper SVG compression. Sample: https://media.uwex.edu/content/cyb/cyb715/cyb715_mod3_risk-management-plan.sbproj/

Lin87 commented 3 years ago

@patrick-wirth @owlboy

I encountered this black screen issue when I was working on APC 350 lecture. I updated the SBPLUS image preloading script (it was not caching properly) and how a bundle page "layers" images (now it is smoother). There will always be a quick flicker from a black screen to an image (even for cached images) for audio slides because that is just the way the player loads resources. We might able to resolve that by caching audio files too.

I have not encountered any black screens after the update. Let me know if you encounter them again. Remember to clear web browser cache.