Sergey Krashevich
a50c99b8e5
Added a button to the log page allowing users to toggle the order in which logs are displayed (normal or reversed). This feature enhances user experience by providing flexibility in viewing logs. The implementation involves a boolean flag `reverseOrder` to track the current state of log order and dynamically updates the button text to reflect the current mode. Additionally, the log fetching function now conditionally reverses the log array based on this flag, ensuring that the display order matches the user's preference. This change could significantly improve usability for users needing to analyze recent events without scrolling through the entire log history.
Browser support
ECMAScript 2019 (ES10) supported by iOS 12 (iPhone 5S, iPad Air, iPad Mini 2, etc.).
But ECMAScript 2017 (ES8) almost fine (es6 + async) and recommended for React+TypeScript.
Known problems
- Autoplay doesn't work for WebRTC in Safari read more.
HTML5
1. Autoplay video tag
Video auto play is not working
Recently many browsers can only autoplay the videos with sound off, so you'll need to add muted attribute to the video tag too
<video id="video" autoplay controls playsinline muted></video>
2. [Safari] pc.createOffer
Don't work in Desktop Safari:
pc.createOffer({offerToReceiveAudio: true, offerToReceiveVideo: true})
Should be replaced with:
pc.addTransceiver('video', {direction: 'recvonly'});
pc.addTransceiver('audio', {direction: 'recvonly'});
pc.createOffer();
3. pc.ontrack
TODO
pc.ontrack = ev => {
const video = document.getElementById('video');
// when audio track not exist in Chrome
if (ev.streams.length === 0) return;
// when audio track not exist in Firefox
if (ev.streams[0].id[0] === '{') return;
// when stream already init
if (video.srcObject !== null) return;
video.srcObject = ev.streams[0];
}
Chromecast 1
2023-02-02. Error:
InvalidStateError: Failed to execute 'addTransceiver' on 'RTCPeerConnection': This operation is only supported in 'unified-plan'. 'unified-plan' will become the default behavior in the future, but it is currently experimental. To try it out, construct the RTCPeerConnection with sdpSemantics:'unified-plan' present in the RTCConfiguration argument.
User-Agent: Mozilla/5.0 (X11; Linux armv7l) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.47 Safari/537.36 CrKey/1.36.159268
https://webrtc.org/getting-started/unified-plan-transition-guide?hl=en
Useful links
- https://www.webrtc-experiment.com/DetectRTC/
- https://divtable.com/table-styler/
- https://www.chromium.org/audio-video/
- https://web.dev/i18n/en/fast-playback-with-preload/#manual_buffering
- https://developer.mozilla.org/en-US/docs/Web/API/Media_Source_Extensions_API
- https://chromium.googlesource.com/external/w3c/web-platform-tests/+/refs/heads/master/media-source/mediasource-is-type-supported.html
- https://googlechrome.github.io/samples/media/sourcebuffer-changetype.html
- https://chromestatus.com/feature/5100845653819392
- https://developer.apple.com/documentation/webkit/delivering_video_content_for_safari
- https://dirask.com/posts/JavaScript-supported-Audio-Video-MIME-Types-by-MediaRecorder-Chrome-and-Firefox-jERn81
- https://privacycheck.sec.lrz.de/active/fp_cpt/fp_can_play_type.html