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  <meta name=viewport content="width=device-width,initial-scale=1">



  <title>onabort vs onerror</title>



  <style>body{font-family:system-ui,sans-serif;margin:0;padding:1.5rem;background:#f8fafc;color:#334155;line-height:1.7}h1{margin:0 0 .75rem;font-size:1.25rem;color:#0f172a}.grid{display:grid;gap:1rem;max-width:560px}@media (min-width:520px){.grid{grid-template-columns:1fr 1fr}}figure{margin:0;padding:.75rem;background:#fff;border:1px solid #e2e8f0;border-radius:8px}figcaption{font-size:.75rem;font-weight:600;color:#0f172a;margin-bottom:.5rem}img{display:block;width:120px;height:80px;background:#e2e8f0;border-radius:6px;border:1px solid #cbd5e1}button{margin-top:.5rem;padding:.4rem .75rem;font:inherit;cursor:pointer;border-radius:6px;border:1px solid #cbd5e1;background:#fff;font-size:.8125rem}.result{margin-top:.5rem;font-size:.75rem;color:#64748b;min-height:2.5rem}code{background:#e2e8f0;padding:.1rem .35rem;border-radius:4px}</style>



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  <h1>onabort vs onerror</h1>



  <div class=grid>



    <figure>



      <figcaption>Abort (cancel load)</figcaption>



      <img id=abortImg alt="Abort demo">



      <button type=button id=abortTest>Load then cancel</button>



      <div class=result id=abortOut>—</div>



    </figure>



    <figure>



      <figcaption>Error (bad URL)</figcaption>



      <img id=errorImg alt="Error demo">



      <button type=button id=errorTest>Load missing file</button>



      <div class=result id=errorOut>—</div>



    </figure>



  </div>







  <script>var abortImg=document.getElementById("abortImg"),errorImg=document.getElementById("errorImg");abortImg.addEventListener("abort",(function(){document.getElementById("abortOut").textContent="onabort fired — load was canceled."})),errorImg.addEventListener("error",(function(){document.getElementById("errorOut").textContent="onerror fired — file not found."})),document.getElementById("abortTest").addEventListener("click",(function(){document.getElementById("abortOut").textContent="Loading…",abortImg.src="/images/area-example.png?t="+Date.now(),setTimeout((function(){abortImg.src=""}),50)})),document.getElementById("errorTest").addEventListener("click",(function(){document.getElementById("errorOut").textContent="Loading…",errorImg.src="/images/file-does-not-exist-"+Date.now()+".png"}))</script>



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HTML onabort Attribute — abort vs error
