fix(video): guard sourceless player play attempts

assets/js/video-player.js

@@ -153,7 +153,7 @@
             self.hls.loadSource(self.src);
             self.hls.attachMedia(self.video);
           }
-        });
+        }).catch(function () { /* CDN unreachable: leave the player sourceless */ });
       }
     } else if (this.type === 'flv') {
       loadScript(FLV_SRC).then(function () {
@@ -162,7 +162,7 @@
           self.flvPlayer.attachMediaElement(self.video);
           self.flvPlayer.load();
         }
-      });
+      }).catch(function () { /* CDN unreachable: leave the player sourceless */ });
     } else {
       this.video.src = this.src;
     }
@@ -172,9 +172,14 @@
     }
   };
 
+  AksrtVideoPlayer.prototype.hasSource = function () {
+    return Boolean(this.video.currentSrc || this.video.src || this.hls || this.flvPlayer);
+  };
+
   AksrtVideoPlayer.prototype.toggle = function () {
+    if (!this.hasSource()) return;
     if (this.video.paused) {
-      this.video.play();
+      this.video.play().catch(function () { /* source failed or autoplay blocked */ });
     } else {
       this.video.pause();
     }
@@ -220,9 +225,9 @@
     this.loadSource();
   };
 
-  // ── 剧集切换按钮事件委托 ──
+  // ── 剧集切换按钮事件委托（iframe 剧集由 runtime main 的 .switch-iframe 链路处理）──
   document.addEventListener('click', function (e) {
-    var switchBtn = e.target.closest('.switch-video, .switch-iframe');
+    var switchBtn = e.target.closest('.switch-video');
     if (!switchBtn) return;
 
     var container = switchBtn.closest('.aksrt-video') || switchBtn.closest('[data-aksrt-video]');
@@ -236,7 +241,7 @@
     if (!container) return;
 
     var src = switchBtn.dataset.src || switchBtn.getAttribute('video-url') || switchBtn.getAttribute('href');
-    if (!src) return;
+    if (!src || !/^https?:/i.test(src)) return;
 
     e.preventDefault();
 
@@ -251,7 +256,7 @@
 
     // 高亮当前集
     var scope = switchBtn.closest('.featured-video-episode') || (container.parentElement || document);
-    var siblings = scope.querySelectorAll('.switch-video, .switch-iframe');
+    var siblings = scope.querySelectorAll('.switch-video');
     siblings.forEach(function (btn) {
       btn.classList.remove('is-active');
       btn.classList.remove('active');

tests/widget-system/single-cover-height-contract.test.cjs

@@ -101,6 +101,20 @@ test('video cover: the player video fills and center-crops like the image cover'
   );
 });
 
+test('video cover: play never runs against a sourceless player', () => {
+  const player = read('assets/js/video-player.js');
+  // toggle 必须先守卫无源状态，且 play() 的 promise 必须被捕获。
+  assert.match(player, /hasSource\s*=\s*function\s*\(\)\s*\{[^}]*currentSrc[^}]*\}/);
+  assert.match(player, /toggle\s*=\s*function\s*\(\)\s*\{\s*if\s*\(!this\.hasSource\(\)\)\s*return;/);
+  assert.match(player, /this\.video\.play\(\)\.catch\(function/);
+  // hls/flv CDN 脚本加载失败必须收敛，不得产生未处理 rejection。
+  assert.match(player, /loadScript\(HLS_SRC\)\.then\([\s\S]*?\}\)\.catch\(function/);
+  assert.match(player, /loadScript\(FLV_SRC\)\.then\([\s\S]*?\}\)\.catch\(function/);
+  // iframe 剧集归 runtime main 的 .switch-iframe 链路，播放器不得接管其选择器。
+  assert.doesNotMatch(player, /closest\('\.switch-video, \.switch-iframe'\)/);
+  assert.doesNotMatch(player, /querySelectorAll\('\.switch-video, \.switch-iframe'\)/);
+});
+
 test('resource singles get the cover leaf versioned, never via the aggregate @import', () => {
   // 聚合文件的 @import 无版本号：浏览器会拿旧缓存（含已废弃的 .single-cover
   // padding 规则）把封面高度链挤成 0，资源型文章封面直接空白。