Try yourself, submit the form and look in the network tab of the developer tool.

<divclass="form-group"></div>

<formaction="/docs/form-submission.html"method="get">

<formmethod="get">

<inputid="input"type="hidden"name="json">

<divid='editor-container'></div>

<inputid="submit"class="btn btn-primary"width="100"type="submit">