title: SyntaxError: JSON.parse: unexpected non-whitespace character after JSON data at line 1 column 44498 of the JSON data
body: <p>There are many similar issues addressed in this forum. But I couldn't get smarter about my problem. I will describe briefly.</p>
  <p>I have developed a nestedSortable QCubed platform. Everything is fine, but one thing remained unresolved. Sorting and deleting are fine.
  Adding a new entry FOR THE FIRST TIME strikes: &quot;SyntaxError: JSON.parse: unexpected non-whitespace character after JSON data at line 1 column 44498 of the JSON data&quot;.</p>
  <p>Creating the following entries will not cause any problems.</p>
  <p><a href="https://i.stack.imgur.com/vGxJ1.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/vGxJ1.jpg" alt="enter image description here" /></a></p>
  <p>I checked with Debugger and found the place that throws the error:</p>
  <pre><code>// Opera 10-11 does not throw on post-comma invalid pseudos
       div.querySelectorAll (&quot;* ,: x&quot;);
       rbuggyQSA.push (&quot;,. *:&quot;);``
  </code></pre>
  <p>I tried both versions: jquery-1.12.4.js or jquery-3.2.1.js. There are no differences.</p>
  <p>I also checked json via <a href="https://jsonlint.com/" rel="nofollow noreferrer">https://jsonlint.com/</a>, then the json output is validated.</p>
  <p>I am grateful if someone can draw my attention or suggest what I should look for and do.</p>