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  • "Phil" started this thread

Posts: 97

Location: Texas

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Thursday, November 7th 2013, 9:54pm

Videos won't play in HTML5

I'm noticing that videos won't play in HTML5. In the index file when html5:"prefer" is making the desktop browser to use html5 I receive the following error.

ERROR: [b]video/video-name.mp4 - loading video failed![/b]

This is using the multiple video formats. videourl="video/video-name.mp4|video/video-name.flv|video/video-name.webm|video/video-name.3gp"

I see the same error using the video hotspot example too. Running W7 with the latest Firefox, Chrome and IE browsers.

What's the secret to getting videos to play in html5???



Friday, February 21st 2014, 5:49pm

+1 video html5 dont work *confused*


Monday, February 24th 2014, 8:33am


are you using the latest krpano version 1.17?

The latest Firefox browser and the latest Windows Chrome browser are reporting to the videoplayer plugin that they are supporting MP4 but in real the don't do.

For this reason the videoplayer.js plugin from the latest krpano version will prefer 'webm' by default (when 'webm' support was reported from the browser). The webm format is typically working fine in both browsers.

The online example here should work in all browsers:

Best regards,



Posts: 125

Location: De Haan

Occupation: Freelance Photographer

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Wednesday, May 7th 2014, 11:04am

I have some video issues with Internet Explorer 11. I have these formats... Mp4 & OGV. The video plays in all browsers except IE11.
I tried the video file of the online example (M4V) format and this one works. Then I converted my own video file (MP4 format) with an online converter to M4V, without result. the video doesn't play in IE.

Klaus, may I ask what program you used to convert the Video files in the example? I tried Miro but M4V is not supported.

Tnx for help,


Thursday, January 2nd 2020, 12:35pm

convert video to WebM or FLV

Hi. Try to use a smart video converter to convet the video to WebM or FLV format. As I know this two formats are compatible with HTML 5.


Thursday, January 2nd 2020, 12:37pm

Hi. Try to use a smart video converter to convet the video to WebM or FLV format. As I know this two formats are compatible with HTML 5.

you noticed that this thread is from 2013/2014 ;)
i always use mp4 + webm + m4a audio



Posts: 70

Occupation: Software development

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Saturday, January 4th 2020, 4:22pm

vrTourSoft has a built-in video converter.
The program will prepare the necessary file formats and embed the code in your tour.xml
You can set the show of the ready video by clicking on the hotspot, layer, menu item, etc. just by selecting a video from the list.
Read more here
P.S. Usage of m4a is not necessary for modern Mac OS
vrTourSoft - Simple is better than Hard. Standalone WYSIWYG editor and development environment for krpano

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