如何在三星原生浏览器中禁用/移除视频助手并通过JavaScript阻止其强制视频全屏

Hey there! I’ve dug into this exact issue with Samsung’s native browser video helper, and yes—developers have found JavaScript-based workarounds to tackle both disabling the helper and preventing forced fullscreen. Here’s what you can implement:

1. Override Video Element Events to Block the Helper #

Samsung’s video helper often hooks into video element events to trigger its UI or forced fullscreen. You can override these events to take back control:

const targetVideo = document.querySelector('video');

// Block the context menu (a common trigger for the video helper)
targetVideo.addEventListener('contextmenu', (e) => {
  e.preventDefault();
  e.stopPropagation();
});

// Override the native fullscreen request to block forced triggers
const originalFullscreenRequest = targetVideo.requestFullscreen;
targetVideo.requestFullscreen = function(options) {
  // Only allow fullscreen if the user explicitly initiated the action
  if (document.activeElement === targetVideo) {
    return originalFullscreenRequest.call(this, options);
  }
  // Reject forced fullscreen attempts from the helper
  return Promise.reject(new Error('Forced fullscreen blocked by custom logic'));
};

2. Hide Helper UI with CSS #

The video helper injects its own DOM elements into the page. You can target and hide them using CSS (note: class names may change with browser updates, so inspect elements to confirm):

/* Target common Samsung video helper class patterns */
.samsung-video-helper, .svh-overlay, [class*="video-assistant"] {
  display: none !important;
  pointer-events: none !important;
}

3. Reset Fullscreen State on Video Play #

If the helper forces fullscreen when the video starts playing, you can listen for the play event and exit unwanted fullscreen:

targetVideo.addEventListener('play', () => {
  // Check if fullscreen was triggered without user input
  if (document.fullscreenElement && document.fullscreenElement !== targetVideo) {
    document.exitFullscreen().catch(err => {
      console.warn('Failed to exit forced fullscreen:', err);
    });
  }
});

A quick note: Samsung may tweak their browser’s internals with updates, so these workarounds might need occasional adjustments. Be sure to test across multiple Samsung device models and browser versions to ensure reliability.

内容的提问来源于stack exchange，提问作者Diego Vieira