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补正 pitfalls 里的实测数字：gzip 后 phaser.min.js 为 353,336 B，并记录两侧画面耗时对照
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董羽秦
2026-10-05 17:15:07 +08:00
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@@ -6413,5 +6413,5 @@ Cocos Creator 根目录由 `package.json.creator.version` 与普通 `assets/`
- **根因**：① 网页游玩页的加载态只有一行小字盖在 `#17131b` 近黑壳上，没有封面/进度/阶段文案，`ready` 判定又只看 iframe `onLoad`（文档加载完成 ≠ 游戏可玩）；② 后台试玩只有 `<iframe class="admin-game-review-preview">`，没有加载态、没有超时、没有失败处理，会话过期或资源 404 会永远停在空白；③ 发行网关把 ZIP 解压后的原文直出，`phaser.min.js` 1,375,976 B 原样下发（`Content-Encoding: none`），也没有 ETag —— 4 Mbps 下光这一个文件就 ~2.7 s，且 60 秒 `max-age` 过后浏览器只能重下整包。
- **处理（现行口径）**：新增共享组件 `PlatformGameLoadingSurface`（`packages/shared`，封面/标题 + 动效进度 + 按时长推进的阶段文案 + 慢加载提示），网页游玩页与后台试玩共用；两端的加载上限统一为 `PLATFORM_GAME_LOADING_TIMEOUT_MS`（20 秒），后台超时后给出「重新创建试玩会话」。发行网关对文本类资源（HTML/JS/CSS/JSON/SVG/WASM，≥1 KiB、客户端接受 gzip）下发 `Content-Encoding: gzip` + `Vary: Accept-Encoding`，并下发按 `versionId + 资源路径` 摘要的强 ETag，命中 `If-None-Match` 返回 304（无正文）。
- **边界**：镜像/音频/视频等已是压缩格式的资源不压；后台试玩会话仍是 `no-store` 且不给 ETag；`max-age=60, must-revalidate` 与撤销窗口不变（换版/下架仍最迟 60 秒对新请求生效，304 只是在窗口之后省掉重下）。边缘 gzip/Brotli 与本层不冲突：两边都以「响应已带 `Content-Encoding` 就跳过」收口；但 Pingora 网关在自身压缩关闭时会**移除** `accept-encoding`（`normalize_accept_encoding_for_gateway_compression`），那种部署形态下源站压缩不会生效，属于网关侧口径。
- **验证**：`cargo test -p api-server --bin api-server -- game_distribution`（新增 ETag 作用域、`If-None-Match` 列表/弱校验命中、`gzip;q=0` 拒绝、文本压缩与二进制/小文件不压、304 无正文等用例）；`npx vitest run packages/shared/src/components/PlatformGameLoadingSurface.test.tsx`、`src/components/game-distribution/GameDistributionPages.test.tsx`、`apps/admin-web/src/pages/AdminGameDistributionReviewPage.test.tsx`；真实栈复跑探针后发行网关 `phaser.min.js` 由 1,376 KB 降到约 330 KB，用户端/后台端改后同链路对照见 PR。
- **验证**：`cargo test -p api-server --bin api-server -- game_distribution`（新增 ETag 作用域、`If-None-Match` 列表/弱校验命中、`gzip;q=0` 拒绝、文本压缩与二进制/小文件不压、304 无正文、`*` 对包内缺失路径仍 404 等用例）；`npx vitest run packages/shared/src/components/PlatformGameLoadingSurface.test.tsx`、`src/components/game-distribution/GameDistributionPages.test.tsx`、`apps/admin-web/src/pages/AdminGameDistributionReviewPage.test.tsx`；`npm run check:game-distribution-ops-rollback-e2e` 47 项通过（含压缩/Vary/ETag/304/不接受 gzip 四条新断言）。真实栈同链路复跑：`phaser.min.js` 1,375,976 B → 353,336 B（gzip，4 Mbps 下 2724 ms → 774 ms），用户端游戏画面 3298 ms → 1543 ms、后台试玩 4587 ms → 2694 ms。
- **关联**：`packages/shared/src/components/PlatformGameLoadingSurface.tsx`、`src/components/game-distribution/GamePlayPage.tsx`、`apps/admin-web/src/pages/AdminGameDistributionReviewPage.tsx`、`server-rs/crates/api-server/src/modules/game_distribution.rs`、`deploy/nginx/README.md`。