Thomas Steiner

Feature proposal: Disable named access on `window`

1

While for [quick hacks](http://twitter.com/matthewcp/status/1387481254120001537) the [named access on `window`](https://html.spec.whatwg.org/multipage/window-object.html#named-access-on-the-window-object) behavior is a feature, in more complex applications this behavior introduces [subtle bugs](http://twitter.com/zachleat/status/1387460811522813953) that are hard to detect. Could maybe Document...

Integrate with Permissions Policy

14

There is [evidence](https://github.com/photopea/photopea/issues/2596) that a [Permissions Policy directive](https://w3c.github.io/webappsec-permissions-policy/#policy-directives) for the File System Access API is needed. This is how it could look like: ```html ```

Clarify how the API deals with hidden files

5

Should the API be aware of hidden files? Something like `.gitignore` may well be suitable for a Web-based IDE to display. FWIW, the macOS file picker preview *doesn't* show hidden...

Step 7.7 of `showSaveFilePicker()` spec

11

(Filing on behalf of @kuckir from @photopea.) Obtaining a handle for an existing file erases said files contents, even if no actual write operation is being performed. You can test...

Currently, the spec [disallows](https://wicg.github.io/file-system-access/#valid-suffix-code-point) file extensions to end in comma `,`, but such files actually are a thing in [MuseScore](https://musescore.org/en/handbook/3/file-formats#msczcomma).

MiniApps extend Web App Manifest, so it might make sense to look at their [`req_permissions` member](https://w3c.github.io/miniapp-manifest/#req_permissions-member).

Test page ignores priorities

6

Found this via @dgieselaar's https://medium.com/zoover-engineering/optimizing-css-by-removing-unused-media-queries-80b5508c6de9. One thing to point out is that non-matching media query links are simply downloaded with lowest priority and thus should not interfere with mission-critical resources...

It might be a good idea to document the production tasks `wasmBrowserProductionRun` or `wasmBrowserDistribution` as well as the (commented-out) `applyBinaryen()` optimization. Without, interested parties end up with a 1MB `.wasm`...