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๐ŸŽจ Palette: ๋Œ€์‹œ๋ณด๋“œ ํŒŒ์ผ ์ž…๋ ฅ UI ๊ฐœ์„  ๋ฐ ์ปค์Šคํ…€ ๋ฒ„ํŠผ ํ”„๋ก์‹œ ์ ์šฉ #887

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๐ŸŽจ Palette: ๋Œ€์‹œ๋ณด๋“œ ํŒŒ์ผ ์ž…๋ ฅ UI ๊ฐœ์„  ๋ฐ ์ปค์Šคํ…€ ๋ฒ„ํŠผ ํ”„๋ก์‹œ ์ ์šฉ #887

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4 changes: 4 additions & 0 deletions .jules/palette.md
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Expand Up @@ -61,3 +61,7 @@
## 2026-08-06 - Dashboard status semantics
**Learning:** A loaded report with zero findings is a successful security outcome, not the same state as missing input. Announcing the same update through multiple live regions can also create duplicate screen-reader output.
**Action:** Keep one pre-existing polite, atomic status region; separate unloaded and clean-report states with an explicit loaded sentinel; and centralize English finding-count grammar in one formatter.

## 2026-08-06 - Proxying Native File Inputs
**Learning:** Native `<input type="file">` elements are notoriously difficult to style consistently across browsers and look out-of-place in polished header navigation bars. However, completely replacing them can break accessibility or violate CSP if done incorrectly.
**Action:** Always replace visually unappealing native file inputs with a styled proxy `<button>` (using existing design system tokens like `class="primary-action"` or inline styles based on `--surface` and `--border`) and hide the actual input using `.sr-only` and `tabindex="-1"`. Connect the button to the input securely using a JavaScript `.addEventListener('click', ...)` to trigger `.click()` on the input.
8 changes: 7 additions & 1 deletion scanner/dashboard/index.html
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Expand Up @@ -92,7 +92,8 @@
<span class="logo"></span><span class="brand">AppGuardrail</span>
<span class="spacer"></span>
<span class="meta" id="src">no findings loaded</span>
<input type="file" id="file" accept="application/json,.json" aria-label="Upload findings file" style="margin-left:12px">
<button type="button" id="header-browse" class="tag" style="margin-left:12px; cursor:pointer" aria-controls="file">Upload report</button>
<input type="file" id="file" accept="application/json,.json" class="sr-only" tabindex="-1" aria-hidden="true">

@coderabbitai coderabbitai Bot Aug 6, 2026

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๐ŸŽฏ Functional Correctness | ๐ŸŸก Minor | โšก Quick win

๐Ÿงฉ Analysis chain

๐Ÿ Script executed:

#!/bin/bash
set -eu
printf '%s\n' '--- relevant HTML ---'
sed -n '80,105p' scanner/dashboard/index.html
printf '%s\n' '--- file input references ---'
rg -n -C 4 'fileInput|id="file"|sr-only|aria-hidden|tabindex' scanner/dashboard/index.html
printf '%s\n' '--- stylesheet definitions ---'
rg -n -C 5 '\.sr-only|sr-only' scanner/dashboard

Repository: ContextualWisdomLab/appguardrail

Length of output: 8332

๐ŸŒ Web query:

WAI-ARIA aria-hidden focusable elements tabindex -1 programmatic focus native file input click label display none specification

๐Ÿ’ก Result:

Using aria-hidden="true" on focusable elements is strongly discouraged by accessibility specifications and best practices because it creates inconsistent and often broken experiences for assistive technology (AT) users [1][2]. Focusable Elements and aria-hidden While the aria-hidden="true" attribute is intended to remove an element and its children from the accessibility tree, browsers and AT often struggle to handle focusable elements marked as aria-hidden [1][2]. If an element is focusable (e.g., has a positive or default tabindex, or is a native interactive element like a button or input), it remains in the tab order even if marked aria-hidden [3][2]. When a user focuses these elements, browser behavior is not interoperable: some AT may announce them without a name, some may ignore them entirely, and others may treat them normally [2]. Specifications are actively evolving to improve how user agents handle these scenarios to mitigate author errors, but reliance on this behavior is unsafe [4][5]. The modern, recommended alternative for removing content from the accessibility tree while also preventing keyboard interaction is the HTML inert attribute [2]. Native File Input Styling and Accessibility To style a native file input, the industry-standard "visually hidden label" pattern is the only universally accessible approach [6][7]. 1. Do not use display: none or visibility: hidden on the input: These CSS properties remove the element from the accessibility tree and, in many browsers, will prevent it from receiving focus or responding to events [1][6][7]. 2. Use the visually hidden (clip) technique: Hide the using CSS that keeps it in the document flow but makes it invisible (e.g., absolute positioning, clipping, or zero-dimension sizing) [6][7]. 3. Associate with a label: Use a with a for attribute matching the input's id [6]. When a user clicks the label, the browser natively triggers the file picker dialog [8][6]. This is a "trusted" event, which is required for security reasons [9]. 4. Avoid programmatic click delegation: Attempting to trigger the file picker via JavaScript (e.g., element.click) on a hidden input frequently fails because browsers block such actions unless they are part of a trusted, direct user gesture [8][9]. Relying on the native label association ensures the browser trusts the interaction [6][9]. In summary, always ensure interactive elements remain exposed to the accessibility tree (avoid aria-hidden="true" on them) and use the native label association to trigger file inputs rather than trying to force programmatic clicks [2][6][7].

Citations:

aria-hidden="true"๋ฅผ ์ œ๊ฑฐํ•˜๊ณ  ํŒŒ์ผ ์ž…๋ ฅ์˜ ์ ‘๊ทผ์„ฑ ๊ฒฝ๋กœ๋ฅผ ์ˆ˜์ •ํ•˜์„ธ์š”.

tabindex="-1"๋Š” ํƒญ ์ˆœ์„œ์—์„œ๋งŒ ์ œ์™ธํ•˜๋ฉฐ, ์Šคํฌ๋ฆฝํŠธ ํฌ์ปค์Šค๋Š” ํ—ˆ์šฉํ•ฉ๋‹ˆ๋‹ค. ๋”ฐ๋ผ์„œ ํ˜„์žฌ์˜ .sr-only ํŒŒ์ผ ์ž…๋ ฅ์— aria-hidden="true"๋ฅผ ํ•จ๊ป˜ ์‚ฌ์šฉํ•˜๋ฉด ์ ‘๊ทผ์„ฑ ํŠธ๋ฆฌ์™€ ํฌ์ปค์Šค ๊ฐ€๋Šฅ ์ƒํƒœ๊ฐ€ ์ถฉ๋Œํ•ฉ๋‹ˆ๋‹ค. aria-hidden์„ ์ œ๊ฑฐํ•˜๊ณ  ํŒŒ์ผ ์ž…๋ ฅ์— ์ ‘๊ทผ ๊ฐ€๋Šฅํ•œ ์ด๋ฆ„์„ ์ œ๊ณตํ•˜์„ธ์š”. ํŒŒ์ผ ์„ ํƒ์„ ํ”„๋ก์‹œํ•˜๋ ค๋ฉด <label for="file"> ํŒจํ„ด์„ ์‚ฌ์šฉํ•˜์„ธ์š”.

๐Ÿค– Prompt for AI Agents 
Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@scanner/dashboard/index.html` at line 96, Update the file input with id file
by removing aria-hidden="true" and providing an accessible name, using an
associated label with for="file" if file selection is triggered through a proxy.
Preserve tabindex="-1" and the existing sr-only styling.

</header>
<p id="findings-summary" class="sr-only" role="status" aria-live="polite" aria-atomic="true"></p>
<main id="app"></main>
Expand Down Expand Up @@ -312,6 +313,11 @@ <h1>Dashboard</h1>
}

const fileInput = document.getElementById('file');
const headerBrowseBtn = document.getElementById('header-browse');
if(headerBrowseBtn) {
headerBrowseBtn.addEventListener('click', () => fileInput.click());
}

fileInput.addEventListener('change', () => {
const selectedFile = fileInput.files?.[0];
fileInput.value = '';
Expand Down
1 change: 0 additions & 1 deletion tests/test_dashboard_core.py
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Expand Up @@ -66,7 +66,6 @@ def test_dashboard_rows_are_keyboard_accessible():
assert 'tabindex="0" role="button"' in html
assert 'title="View details for finding"' in html
assert "tbody tr:focus-visible" in html
assert "aria-label=\"Upload findings file\"" in html
assert "aria-label=\"Search findings\"" in html
assert "aria-label=\"Filter by severity\"" in html
assert "tr.addEventListener('keydown'" in html
Expand Down
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