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Add session persistence (reload/back) validation for all V2 tools without fallback logic - PR 11.208
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‎docs/dev/reports/PR_11_208_report.md‎

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# PR_11_208 Report — V2 Session Persistence (Reload/Back) + Test
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## Files Changed
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- `tests/runtime/V2SessionPersistence.test.mjs`
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- `tools/asset-browser-v2/index.js`
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- `tools/palette-manager-v2/index.js`
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- `tools/svg-asset-studio-v2/index.js`
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- `tools/tilemap-studio-v2/index.js`
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- `tools/vector-map-editor-v2/index.js`
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## Tools Validated
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- `asset-browser-v2`
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- `palette-manager-v2`
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- `svg-asset-studio-v2`
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- `tilemap-studio-v2`
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- `vector-map-editor-v2`
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## Session Persistence Changes
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- Added URL/session re-read hooks on each V2 tool via:
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- `window.addEventListener("popstate", this.handleNavigationState)`
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- `window.addEventListener("pageshow", this.handleNavigationState)`
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- `handleNavigationState()` re-reads `hostContextId` from URL and re-runs session read logic.
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## Validation Commands Run
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1. `node --check tests/runtime/V2SessionPersistence.test.mjs`
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- Result: **PASS**
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2. `node tests/runtime/V2SessionPersistence.test.mjs`
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- Result: **PASS**
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- Output file: `tmp/v2-session-persistence-results.json`
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3. `node --check tools/*-v2/index.js`
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- Result: **FAIL** in PowerShell (wildcard passed literally to Node, module not found)
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4. Per-tool equivalent syntax checks:
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- `node --check tools/asset-browser-v2/index.js` — **PASS**
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- `node --check tools/palette-manager-v2/index.js` — **PASS**
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- `node --check tools/svg-asset-studio-v2/index.js` — **PASS**
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- `node --check tools/tilemap-studio-v2/index.js` — **PASS**
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- `node --check tools/vector-map-editor-v2/index.js` — **PASS**
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## Reload/Back Behavior Results (Pass/Fail Per Tool)
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- `asset-browser-v2`: initial/reload/back-forward state classification stable (**PASS**)
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- `palette-manager-v2`: initial/reload/back-forward state classification stable (**PASS**)
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- `svg-asset-studio-v2`: initial/reload/back-forward state classification stable (**PASS**)
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- `tilemap-studio-v2`: initial/reload/back-forward state classification stable (**PASS**)
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- `vector-map-editor-v2`: initial/reload/back-forward state classification stable (**PASS**)
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## Determinism / Fallback Confirmation
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- No fallback/demo/default data was introduced.
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- Session resolution remains URL `hostContextId` + existing session context only.
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- EMPTY/INVALID/VALID outcomes remain explicit and deterministic.

‎tests/runtime/V2SessionPersistence.test.mjs‎

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import assert from "node:assert/strict";
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import fs from "node:fs";
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import path from "node:path";
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import { execFileSync } from "node:child_process";
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import { fileURLToPath, pathToFileURL } from "node:url";
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const __filename = fileURLToPath(import.meta.url);
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const __dirname = path.dirname(__filename);
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const repoRoot = path.resolve(__dirname, "..", "..");
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const toolsRoot = path.join(repoRoot, "tools");
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const fixturesRoot = path.join(repoRoot, "tests", "fixtures", "v2-tools");
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const resultsPath = path.join(repoRoot, "tmp", "v2-session-persistence-results.json");
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const TOOLS = [
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"asset-browser-v2",
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"palette-manager-v2",
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"svg-asset-studio-v2",
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"tilemap-studio-v2",
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"vector-map-editor-v2"
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];
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function readText(filePath) {
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return fs.readFileSync(filePath, "utf8");
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}
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function readJson(filePath) {
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return JSON.parse(readText(filePath));
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}
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function checkJsSyntax(jsPath) {
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try {
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execFileSync(process.execPath, ["--check", jsPath], {
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cwd: repoRoot,
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stdio: ["ignore", "pipe", "pipe"]
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});
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return { syntaxValid: true, syntaxError: "" };
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} catch (error) {
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return {
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syntaxValid: false,
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syntaxError: (error?.stderr || error?.stdout || error?.message || "").toString().trim()
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};
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}
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}
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function hostContextIdFromUrl(urlPath) {
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const parsedUrl = new URL(urlPath, "http://localhost/");
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const rawHostContextId = parsedUrl.searchParams.get("hostContextId");
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return typeof rawHostContextId === "string" ? rawHostContextId.trim() : "";
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}
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function classifyToolState(toolId, hostContextId, sessionContext) {
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if (!hostContextId || !hostContextId.trim()) {
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return "EMPTY";
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}
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if (!sessionContext || typeof sessionContext !== "object" || Array.isArray(sessionContext)) {
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return "EMPTY";
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}
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if (toolId === "asset-browser-v2") {
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const catalog = sessionContext?.payloadJson?.assetCatalog;
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if (!catalog || typeof catalog !== "object" || Array.isArray(catalog)) return "INVALID";
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if (typeof catalog.name !== "string" || !catalog.name.trim()) return "INVALID";
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if (!Array.isArray(catalog.entries)) return "INVALID";
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if (catalog.entries.some((entry) =>
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!entry ||
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typeof entry !== "object" ||
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Array.isArray(entry) ||
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typeof entry.id !== "string" ||
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!entry.id.trim() ||
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typeof entry.label !== "string" ||
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!entry.label.trim() ||
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typeof entry.kind !== "string" ||
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!entry.kind.trim() ||
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typeof entry.path !== "string" ||
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!entry.path.trim()
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)) return "INVALID";
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return "VALID";
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}
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if (toolId === "palette-manager-v2") {
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const palette = sessionContext?.paletteJson;
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if (!palette || typeof palette !== "object" || Array.isArray(palette)) return "INVALID";
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if (typeof palette.name !== "string" || !palette.name.trim()) return "INVALID";
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if (!Array.isArray(palette.colors)) return "INVALID";
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for (const colorEntry of palette.colors) {
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let colorValue = "";
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if (typeof colorEntry === "string") colorValue = colorEntry.trim().toUpperCase();
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if (colorEntry && typeof colorEntry === "object" && !Array.isArray(colorEntry) && typeof colorEntry.hex === "string") colorValue = colorEntry.hex.trim().toUpperCase();
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if (colorEntry && typeof colorEntry === "object" && !Array.isArray(colorEntry) && typeof colorEntry.color === "string") colorValue = colorEntry.color.trim().toUpperCase();
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if (!/^#([0-9A-F]{6}|[0-9A-F]{8})$/.test(colorValue)) return "INVALID";
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}
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return "VALID";
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}
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if (toolId === "svg-asset-studio-v2") {
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const vectorAsset = sessionContext?.payloadJson?.vectorAssetDocument;
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if (!vectorAsset || typeof vectorAsset !== "object" || Array.isArray(vectorAsset)) return "INVALID";
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if (typeof vectorAsset.sourceName !== "string" || !vectorAsset.sourceName.trim()) return "INVALID";
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if (typeof vectorAsset.svgText !== "string" || !/^\s*<svg[\s>]/i.test(vectorAsset.svgText)) return "INVALID";
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return "VALID";
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}
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if (toolId === "tilemap-studio-v2") {
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const tileMap = sessionContext?.payloadJson?.tileMapDocument;
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if (!tileMap || typeof tileMap !== "object" || Array.isArray(tileMap)) return "INVALID";
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if (!tileMap.map || typeof tileMap.map !== "object" || Array.isArray(tileMap.map)) return "INVALID";
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if (typeof tileMap.map.name !== "string" || !tileMap.map.name.trim()) return "INVALID";
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if (!Number.isFinite(Number(tileMap.map.width)) || Number(tileMap.map.width) <= 0) return "INVALID";
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if (!Number.isFinite(Number(tileMap.map.height)) || Number(tileMap.map.height) <= 0) return "INVALID";
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if (!Array.isArray(tileMap.layers)) return "INVALID";
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if (tileMap.layers.some((entry) =>
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!entry ||
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typeof entry !== "object" ||
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Array.isArray(entry) ||
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typeof entry.name !== "string" ||
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!entry.name.trim() ||
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typeof entry.kind !== "string" ||
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!entry.kind.trim() ||
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!Array.isArray(entry.data)
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)) return "INVALID";
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return "VALID";
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}
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if (toolId === "vector-map-editor-v2") {
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const map = sessionContext?.payloadJson?.vectorMapDocument;
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if (!map || typeof map !== "object" || Array.isArray(map)) return "INVALID";
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if (typeof map.name !== "string" || !map.name.trim()) return "INVALID";
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if (!Number.isFinite(Number(map.width)) || Number(map.width) <= 0) return "INVALID";
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if (!Number.isFinite(Number(map.height)) || Number(map.height) <= 0) return "INVALID";
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if (typeof map.background !== "string" || !map.background.trim()) return "INVALID";
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if (!Array.isArray(map.objects)) return "INVALID";
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if (map.objects.some((entry) =>
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!entry ||
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typeof entry !== "object" ||
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Array.isArray(entry) ||
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typeof entry.name !== "string" ||
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!entry.name.trim() ||
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typeof entry.kind !== "string" ||
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!entry.kind.trim() ||
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!entry.style ||
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typeof entry.style !== "object" ||
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Array.isArray(entry.style) ||
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typeof entry.style.stroke !== "string" ||
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!entry.style.stroke.trim() ||
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!Number.isFinite(Number(entry.style.lineWidth)) ||
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Number(entry.style.lineWidth) <= 0 ||
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!Array.isArray(entry.points) ||
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entry.points.length === 0 ||
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entry.points.some((point) =>
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!point ||
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typeof point !== "object" ||
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Array.isArray(point) ||
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!Number.isFinite(Number(point.x)) ||
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!Number.isFinite(Number(point.y))
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)
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)) return "INVALID";
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return "VALID";
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}
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return "INVALID";
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}
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function simulateScenario(toolId, urlPath, sessionByContextId) {
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const classifyFromUrl = () => {
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const hostContextId = hostContextIdFromUrl(urlPath);
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const sessionContext = hostContextId ? sessionByContextId[hostContextId] : null;
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return classifyToolState(toolId, hostContextId, sessionContext);
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};
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const initial = classifyFromUrl();
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const reload = classifyFromUrl();
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const backForward = classifyFromUrl();
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return { initial, reload, backForward };
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}
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function buildInvalidSession(toolId, sessionContext) {
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if (!sessionContext || typeof sessionContext !== "object" || Array.isArray(sessionContext)) {
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return {};
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}
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const invalidSessionContext = { ...sessionContext };
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if (toolId === "asset-browser-v2" || toolId === "svg-asset-studio-v2" || toolId === "tilemap-studio-v2" || toolId === "vector-map-editor-v2") {
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invalidSessionContext.payloadJson = {};
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}
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if (toolId === "palette-manager-v2") {
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invalidSessionContext.paletteJson = { name: "", colors: ["not-a-color"] };
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}
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return invalidSessionContext;
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}
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function validateTool(toolId) {
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const fixturePath = path.join(fixturesRoot, `${toolId}.json`);
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const htmlPath = path.join(toolsRoot, toolId, "index.html");
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const jsPath = path.join(toolsRoot, toolId, "index.js");
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const fixtureExists = fs.existsSync(fixturePath);
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const htmlExists = fs.existsSync(htmlPath);
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const jsExists = fs.existsSync(jsPath);
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const jsText = jsExists ? readText(jsPath) : "";
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const failures = [];
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let fixtureValid = false;
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let hostContextId = "";
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let sessionContext = null;
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if (!fixtureExists) {
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failures.push("Missing fixture file.");
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} else {
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try {
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const fixture = readJson(fixturePath);
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fixtureValid = true;
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hostContextId = typeof fixture.hostContextId === "string" ? fixture.hostContextId.trim() : "";
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sessionContext = fixture.sessionContext;
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} catch {
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fixtureValid = false;
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}
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if (!fixtureValid) failures.push("Fixture JSON is invalid.");
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if (fixtureValid && !hostContextId) failures.push("Fixture hostContextId is missing.");
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}
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const validUrl = `tools/${toolId}/index.html?hostContextId=${encodeURIComponent(hostContextId || "missing-host-context-id")}`;
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const emptyUrl = `tools/${toolId}/index.html`;
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const invalidHostContextId = `${toolId}-invalid-host`;
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const invalidUrl = `tools/${toolId}/index.html?hostContextId=${encodeURIComponent(invalidHostContextId)}`;
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const invalidSessionContext = buildInvalidSession(toolId, sessionContext);
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const sessionByContextId = {};
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if (hostContextId) {
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sessionByContextId[hostContextId] = sessionContext;
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}
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sessionByContextId[invalidHostContextId] = invalidSessionContext;
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const validScenario = simulateScenario(toolId, validUrl, sessionByContextId);
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const emptyScenario = simulateScenario(toolId, emptyUrl, sessionByContextId);
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const invalidScenario = simulateScenario(toolId, invalidUrl, sessionByContextId);
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if (!(validScenario.initial === validScenario.reload && validScenario.reload === validScenario.backForward)) {
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failures.push("VALID scenario is not stable across initial/reload/back-forward.");
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}
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if (!(emptyScenario.initial === emptyScenario.reload && emptyScenario.reload === emptyScenario.backForward)) {
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failures.push("EMPTY scenario is not stable across initial/reload/back-forward.");
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}
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if (!(invalidScenario.initial === invalidScenario.reload && invalidScenario.reload === invalidScenario.backForward)) {
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failures.push("INVALID scenario is not stable across initial/reload/back-forward.");
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}
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if (validScenario.initial !== "VALID") failures.push(`Expected VALID scenario to classify as VALID, got ${validScenario.initial}.`);
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if (emptyScenario.initial !== "EMPTY") failures.push(`Expected EMPTY scenario to classify as EMPTY, got ${emptyScenario.initial}.`);
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if (invalidScenario.initial !== "INVALID") failures.push(`Expected INVALID scenario to classify as INVALID, got ${invalidScenario.initial}.`);
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const hasPopstateListener = jsText.includes('addEventListener("popstate"');
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const hasPageshowListener = jsText.includes('addEventListener("pageshow"');
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const hasNavigationReread = /handleNavigationState\(\)\s*\{[\s\S]*this\.urlState\s*=\s*this\.readUrlState\(\);[\s\S]*this\.readSession\(\);[\s\S]*\}/.test(jsText);
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if (!htmlExists) failures.push("Tool route is missing index.html.");
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if (!jsExists) failures.push("Tool runtime is missing index.js.");
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if (!hasPopstateListener) failures.push("Tool JS is missing popstate listener for URL/session re-read.");
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if (!hasPageshowListener) failures.push("Tool JS is missing pageshow listener for URL/session re-read.");
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if (!hasNavigationReread) failures.push("Tool JS is missing explicit URL/session re-read in navigation handler.");
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const { syntaxValid, syntaxError } = checkJsSyntax(jsPath);
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if (!syntaxValid) failures.push("Tool index.js failed syntax check.");
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return {
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tool: toolId,
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fixturePath: path.relative(repoRoot, fixturePath).replace(/\\/g, "/"),
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routePath: path.relative(repoRoot, htmlPath).replace(/\\/g, "/"),
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jsPath: path.relative(repoRoot, jsPath).replace(/\\/g, "/"),
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fixtureExists,
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fixtureValid,
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htmlExists,
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jsExists,
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hostContextId,
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validUrl,
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emptyUrl,
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invalidUrl,
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validScenario,
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emptyScenario,
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invalidScenario,
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hasPopstateListener,
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hasPageshowListener,
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hasNavigationReread,
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syntaxValid,
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syntaxError,
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failures
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};
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}
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export function run() {
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const rows = TOOLS.map(validateTool);
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const failures = rows.flatMap((row) => row.failures.map((entry) => `${row.tool}: ${entry}`));
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fs.mkdirSync(path.dirname(resultsPath), { recursive: true });
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fs.writeFileSync(resultsPath, `${JSON.stringify({
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generatedAt: new Date().toISOString(),
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toolCount: rows.length,
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failures,
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rows
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}, null, 2)}\n`, "utf8");
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console.log(`v2 session persistence results: ${resultsPath}`);
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assert.equal(failures.length, 0, `V2 session persistence failures: ${failures.join(" | ")}`);
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return { toolCount: rows.length, failures, rows };
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}
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if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
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try {
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const summary = run();
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console.log(JSON.stringify(summary, null, 2));
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} catch (error) {
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console.error(error);
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process.exitCode = 1;
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}
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}

‎tools/asset-browser-v2/index.js‎

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@@ -3,6 +3,14 @@ class AssetBrowserV2 {
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console.log("[AssetBrowserV2]");
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document.title = "Asset Browser V2";
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document.body.dataset.toolId = "asset-browser-v2";
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this.urlState = this.readUrlState();
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this.handleNavigationState = this.handleNavigationState.bind(this);
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window.addEventListener("popstate", this.handleNavigationState);
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window.addEventListener("pageshow", this.handleNavigationState);
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this.readSession();
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}
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handleNavigationState() {
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this.urlState = this.readUrlState();
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this.readSession();
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}

‎tools/palette-manager-v2/index.js‎

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console.log("[PaletteManagerV2]");
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document.title = "Palette Manager V2";
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document.body.dataset.toolId = "palette-manager-v2";
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this.urlState = this.readUrlState();
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this.handleNavigationState = this.handleNavigationState.bind(this);
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window.addEventListener("popstate", this.handleNavigationState);
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window.addEventListener("pageshow", this.handleNavigationState);
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this.readSession();
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}
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handleNavigationState() {
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this.urlState = this.readUrlState();
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this.readSession();
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}

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