browser-harness/docs/edge-case-benchmark.html at 7deecc9248c23ddc3fe979d2626a6e30efc0a8cd · browser-use/browser-harness · GitHub

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Browser Harness edge-case benchmark</title>
  <style>
    :root {
      color-scheme: light;
      font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
      background: #f7faf9;
      color: #17211f;
    }
    body {
      margin: 0;
      padding: 32px;
    }
    main {
      max-width: 1120px;
      margin: 0 auto;
    }
    h1 {
      font-size: 32px;
      margin: 0 0 8px;
    }
    .intro {
      margin: 0 0 28px;
      color: #4b5d58;
      max-width: 760px;
      line-height: 1.45;
    }
    .grid {
      display: grid;
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 18px;
    }
    .task {
      background: #ffffff;
      border: 1px solid #d8e3df;
      border-radius: 8px;
      padding: 20px;
      min-height: 250px;
      box-shadow: 0 1px 2px rgba(11, 36, 31, 0.06);
    }
    .task h2 {
      font-size: 18px;
      margin: 0 0 12px;
    }
    .status {
      display: inline-flex;
      align-items: center;
      min-height: 28px;
      margin-top: 14px;
      padding: 4px 10px;
      border-radius: 999px;
      background: #edf2f0;
      color: #4b5d58;
      font-size: 13px;
      font-weight: 700;
    }
    .status.pass {
      background: #d9f8e7;
      color: #126236;
    }
    .upload-label, .drag-card {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      min-width: 150px;
      height: 46px;
      border-radius: 6px;
      background: #17211f;
      color: white;
      font-weight: 800;
      cursor: pointer;
      user-select: none;
    }
    input[type="file"] {
      position: absolute;
      width: 1px;
      height: 1px;
      opacity: 0.01;
    }
    .drop-zone {
      display: flex;
      align-items: center;
      justify-content: center;
      min-height: 92px;
      margin-top: 14px;
      border: 2px dashed #87a49d;
      border-radius: 8px;
      color: #587069;
      background: #f1f6f4;
      font-weight: 700;
    }
    .drop-zone.hot {
      border-color: #168a54;
      background: #e4f9ed;
      color: #126236;
    }
    canvas {
      display: block;
      width: 100%;
      max-width: 420px;
      height: 140px;
      border: 1px solid #b9c8c3;
      border-radius: 6px;
      background: white;
      touch-action: none;
    }
    #coordinate-canvas {
      cursor: crosshair;
    }
    .summary {
      margin-top: 22px;
      padding: 16px 18px;
      background: #eaf2ef;
      border-radius: 8px;
      color: #31423e;
      font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
      font-size: 14px;
    }
    @media (max-width: 760px) {
      body {
        padding: 18px;
      }
      .grid {
        grid-template-columns: 1fr;
      }
    }
  </style>
</head>
<body>
  <main>
    <h1>Browser Harness edge-case benchmark</h1>
    <p class="intro">
      Four small browser tasks that usually force agents to switch tactics:
      hidden file input, drag/drop event payloads, canvas signature input, and a
      coordinate-only canvas target.
    </p>

    <section class="grid">
      <article class="task" data-task="file">
        <h2>1. File upload</h2>
        <label class="upload-label" for="file-input">Choose file</label>
        <input id="file-input" type="file">
        <div id="file-status" class="status">waiting for file</div>
      </article>

      <article class="task" data-task="drag">
        <h2>2. Drag and drop</h2>
        <div id="drag-source" class="drag-card" draggable="true">drag token</div>
        <div id="drop-target" class="drop-zone">drop token here</div>
        <div id="drag-status" class="status">waiting for drop</div>
      </article>

      <article class="task" data-task="signature">
        <h2>3. Canvas signature</h2>
        <canvas id="signature-canvas" width="420" height="140"></canvas>
        <div id="signature-status" class="status">waiting for stroke</div>
      </article>

      <article class="task" data-task="coordinate">
        <h2>4. Coordinate target</h2>
        <canvas id="coordinate-canvas" width="420" height="140"></canvas>
        <div id="coordinate-status" class="status">waiting for target click</div>
      </article>
    </section>

    <pre id="summary" class="summary">window.bhBenchmarkResults() -> pending</pre>
  </main>

  <script>
    (() => {
    const state = {
      file: false,
      drag: false,
      signature: false,
      coordinate: false,
    };

    function mark(name, detail) {
      state[name] = true;
      const node = document.getElementById(`${name}-status`);
      node.textContent = detail || "passed";
      node.classList.add("pass");
      renderSummary();
    }

    function renderSummary() {
      document.getElementById("summary").textContent =
        JSON.stringify(window.bhBenchmarkResults(), null, 2);
    }

    window.bhBenchmarkResults = () => ({
      ...state,
      passed: Object.values(state).every(Boolean),
    });

    document.getElementById("file-input").addEventListener("change", (event) => {
      const file = event.target.files && event.target.files[0];
      if (file && file.name) mark("file", `uploaded: ${file.name}`);
    });

    const source = document.getElementById("drag-source");
    const target = document.getElementById("drop-target");
    source.addEventListener("dragstart", (event) => {
      event.dataTransfer.setData("text/plain", "browser-harness-token");
    });
    target.addEventListener("dragenter", () => target.classList.add("hot"));
    target.addEventListener("dragover", (event) => event.preventDefault());
    target.addEventListener("dragleave", () => target.classList.remove("hot"));
    target.addEventListener("drop", (event) => {
      event.preventDefault();
      target.classList.remove("hot");
      if (event.dataTransfer.getData("text/plain") === "browser-harness-token") {
        target.textContent = "token dropped";
        mark("drag", "dropped token");
      }
    });

    const signature = document.getElementById("signature-canvas");
    const sigCtx = signature.getContext("2d");
    sigCtx.lineWidth = 4;
    sigCtx.lineCap = "round";
    sigCtx.strokeStyle = "#17211f";
    let drawing = false;
    let last = null;
    let pathLength = 0;
    let pointCount = 0;

    function sigPoint(event) {
      const rect = signature.getBoundingClientRect();
      return {
        x: (event.clientX - rect.left) * (signature.width / rect.width),
        y: (event.clientY - rect.top) * (signature.height / rect.height),
      };
    }

    function startSignature(event) {
      drawing = true;
      last = sigPoint(event);
      pointCount = 1;
      pathLength = 0;
      sigCtx.beginPath();
      sigCtx.moveTo(last.x, last.y);
    }
    function moveSignature(event) {
      if (!drawing) return;
      const next = sigPoint(event);
      sigCtx.lineTo(next.x, next.y);
      sigCtx.stroke();
      pathLength += Math.hypot(next.x - last.x, next.y - last.y);
      pointCount += 1;
      last = next;
    }
    function endSignature() {
      drawing = false;
      if (pathLength > 120 && pointCount >= 5) mark("signature", "signature captured");
    }
    signature.addEventListener("pointerdown", startSignature);
    signature.addEventListener("pointermove", moveSignature);
    signature.addEventListener("pointerup", endSignature);
    signature.addEventListener("mousedown", startSignature);
    signature.addEventListener("mousemove", moveSignature);
    window.addEventListener("mouseup", endSignature);

    const coordinate = document.getElementById("coordinate-canvas");
    const coordCtx = coordinate.getContext("2d");
    const targetPoint = { x: 312, y: 82, radius: 18 };
    coordCtx.fillStyle = "#f1f6f4";
    coordCtx.fillRect(0, 0, coordinate.width, coordinate.height);
    coordCtx.fillStyle = "#168a54";
    coordCtx.beginPath();
    coordCtx.arc(targetPoint.x, targetPoint.y, targetPoint.radius, 0, Math.PI * 2);
    coordCtx.fill();
    coordCtx.fillStyle = "#17211f";
    coordCtx.font = "700 16px system-ui";
    coordCtx.fillText("click the green target", 24, 42);

    coordinate.addEventListener("click", (event) => {
      const rect = coordinate.getBoundingClientRect();
      const x = (event.clientX - rect.left) * (coordinate.width / rect.width);
      const y = (event.clientY - rect.top) * (coordinate.height / rect.height);
      if (Math.hypot(x - targetPoint.x, y - targetPoint.y) <= targetPoint.radius) {
        mark("coordinate", "target clicked");
      }
    });

    renderSummary();
    })();
  </script>
</body>
</html>