<script src="https://vjs.zencdn.net/7.20.3/video.js"></script> <script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/videojs-contrib-hls.min.js"></script> <script> var player = videojs('my-video', techOrder: ['html5', 'hls'] ); player.src( src: 'https://example.com/stream.m3u8', type: 'application/x-mpegURL' ); </script>
Video.js has moved toward a more unified and maintained approach, replacing the old HLS tech with the VHS (Video.js HTTP Streaming) source handler.
This happens when the browser supports native HLS (Safari, iOS) and Video.js decides to use the native html5 tech instead of VHS’s MSE fallback. In that case, VHS is not instantiated at all – which is fine. The warning only occurs when the old hls tech is referenced. If you are seeing the warning but vhs is undefined, it means something else in your code (or a plugin) is still trying to access player.tech_.hls . Use your browser’s debugger to find the culprit.
Video.js is a popular, open-source JavaScript library that provides a consistent and customizable HTML5 video player across different browsers and devices. It handles everything from basic video playback to advanced features like captions, chapters, and adaptive streaming. <script src="https://vjs
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Historically, Video.js relied on a separate plugin called videojs-contrib-hls to play HTTP Live Streaming (HLS) feeds on browsers that did not natively support it (like Google Chrome and Mozilla Firefox). This engine was accessible via the internal property player.tech_.hls .
Section 4: How to Fix the Warning - Step by Step Guide. For existing code, update player initialization, dependencies, remove explicit hls tech, ensure VHS is included. The warning only occurs when the old hls tech is referenced
player.tech().vhs.playlists.on('change', function() console.log('The resolution has changed!'); ); Use code with caution. Copied to clipboard 3. Checking for VHS Support
The warning is — your HLS playback still works. You can safely ignore it temporarily, but you should update your code before upgrading Video.js to v8 or later, where the deprecated property may be removed entirely.
Because native HTML5 video elements do not support HLS on all browsers (e.g., Safari does, but Chrome/Edge require MSE – Media Source Extensions), Video.js relies on additional “tech” (technology) layers to enable HLS playback across all platforms. You can safely ignore it temporarily
player.ready(function() // CORRECT: Use .vhs instead var playlists = player.tech_.vhs.playlists.master.playlists; console.log('Available streams:', playlists); ); Use code with caution. 2. Listening to HLS/VHS Specific Events
Make sure your dependencies are up to date: