title: Webcrypto AES-CBC Decrypt: Operation Error - The operation failed for an operation-specific reason
body: <p>I have the following code to decrypt AES encrypted data with the Javascript Webcrypto-API, but it results in an "OperationError" with the message "The operation failed for an operation-specific reason":</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>function loadHexToArrybuffer(hex)
  {
   return new Uint8Array(hex.match(/[\da-f]{2}/gi).map(h =&gt; parseInt(h, 16)));
  }
  
  var iv = loadHexToArrybuffer("47b79d24e3ec47c528abdaed8f3fafde");
  var rawKey = loadHexToArrybuffer("8af4d72873e4016cd73a1d5b851e9cb2");
  var encryptedData = loadHexToArrybuffer("2bb7a12a7e59f9fa3c3d4ff0eb502cde3187338cc3137af785995b364fc5b3fe9c208f225c7472bb3de55de18a665863f63030d652b870c4610a70bc771e8bc584df7c3bd2ce3fc1940115e556178e740891f7cac450204a4959916ac9c9cd5aedd92cc7e74a7a581a6d47a6c29fb46eee13ffd3f70616844f8e2bb929c60ad9")
  
  async function test()
  {
   var algorithm = {name: "AES-CBC", iv: iv};
   var key = await window.crypto.subtle.importKey("raw", rawKey, algorithm, false, ["decrypt"]);
  
   try
   {
    var decrypted = await window.crypto.subtle.decrypt(algorithm, key, encryptedData);
   }
   catch (e)
   {
    console.log(e); // OperationError: The operation failed for an operation-specific reason
   }
  }
  
  test();</code></pre>
  </div>
  </div>
  </p>
  
  <p>Can anybody help me out here? Thanks ahead!</p>