chrome/browser/resources/net_internals/domain_security_policy_view.html

<style>
  #domain-security-policy-view-tab-content tt {
    word-wrap: break-word;
  }
</style>

<!-- HSTS/PKP/Expect-CT tab -->
<div id=domain-security-policy-view-tab-content class=content-box>
  <!-- This UI allows a user to query and update the browser's list of
       HSTS/PKP/Expect-CT domains. -->

  <h3>HSTS/PKP</h3>

  <div class=deindent-header>
    HSTS is HTTP Strict Transport Security: a way for sites to elect to
    always use HTTPS. See <a href="https://www.chromium.org/hsts" target=_blank>
    https://www.chromium.org/hsts</a>. PKP is Public Key Pinning: a way for sites
    to "pin" themselves to particular public keys that must appear in their
    certificate chain. See
    <a href="https://tools.ietf.org/html/rfc7469" target=_blank>https://tools.ietf.org/html/rfc7469</a>.</div>

  <h4>Add HSTS/PKP domain</h4>

  <p>Input a domain name to add it to the HSTS/PKP set:</p>
  <form id=hsts-view-add-form>
    Domain: <input type=text id=hsts-view-add-input type="url"
             placeholder="example.com"><br>
    <label>Include subdomains for STS: <input type="checkbox" id=hsts-view-check-sts-input></label><br>
    <label>Include subdomains for PKP: <input type="checkbox" id=hsts-view-check-pkp-input></label><br>
    <label>Public key fingerprints: <input type=text id=hsts-view-add-pins style="width: 25em; max-width: 100%;"></label><br>
    <p style="font-size: small; color: #767676; font-style: italic; margin-left: 2em; max-width: 40em; max-width: 100%;">(public key fingerprints are comma separated and consist of the hash function followed by a foreslash and the base64 encoded fingerprint, for example <tt>sha256/7HIpactkIAq2Y49orFOOQKurWxmmSFZhBCoQYcRhJ3Y=</tt>)</p>
    <input type=submit value="Add" id=hsts-view-add-submit>
  </form>

  <h4>Query HSTS/PKP domain</h4>

  <p>Input a domain name to query the current HSTS/PKP set:</p>
  <form id=hsts-view-query-form>
    Domain: <input type=text id=hsts-view-query-input type="url"
             placeholder="example.com">
    <input type=submit value="Query" id=hsts-view-query-submit>
  </form>
  <div style="margin-top: 1em; margin-left: 2em;" id=hsts-view-query-output></div>


  <h3>Expect-CT</h3>

  <div class=deindent-header>
    Expect-CT allows sites to elect to always require valid Certificate
    Transparency information. See
    <a href="https://tools.ietf.org/html/draft-ietf-httpbis-expect-ct" target=_blank>https://tools.ietf.org/html/draft-ietf-httpbis-expect-ct</a>.</div>

  <h4>Add Expect-CT domain</h4>

  <p>Input a domain name to add it to the Expect-CT set. Leave Enforce unchecked
     to configure Expect-CT in report-only mode.</p>
  <form id=expect-ct-view-add-form>
    <div><label>Domain: <input type=text id=expect-ct-view-add-input type="url"
             placeholder="example.com"></label></div>
    <div><label>Report URI (optional):
      <input type=text id=expect-ct-view-add-report-uri-input type="url"
             placeholder="https://reporting.example.com/expect-ct"></label>
    </div>
    <div><label>Enforce:
      <input type="checkbox" id=expect-ct-view-check-enforce-input></label>
    </div>
    <input type=submit value="Add" id=expect-ct-view-add-submit>
  </form>

  <h4>Query Expect-CT domain</h4>

  <p>Input a domain name to query the current Expect-CT set:</p>
  <form id=expect-ct-view-query-form>
    <label>Domain: <input type=text id=expect-ct-view-query-input type="url"
             placeholder="example.com"></label>
    <input type=submit value="Query" id=expect-ct-view-query-submit>
  </form>
  <div style="margin-top: 1em; margin-left: 2em;"
    id=expect-ct-view-query-output>
  </div>

  <h4>Send test Expect-CT report</h4>

  <p>Trigger a test report to the given report URI. The report will contain a
    hostname of "expect-ct-report.test" and dummy data in other fields.</p>
  <form id=expect-ct-view-test-report-form>
    <label>Report URI: <input type=text id=expect-ct-view-test-report-uri
                              type="url"></label>
    <input type=submit value="Send" id=expect-ct-view-test-report-submit>
  </form>
  <div style="margin-top: 1em; margin-left: 2em;"
    id=expect-ct-view-test-report-output>
  </div>

  <h3>Delete domain security policies</h3>

  <p>
    Input a domain name to delete its dynamic domain security policies (HSTS,
    HPKP, and Expect-CT). (<i>you cannot delete preloaded entries</i>):
  </p>
  <form id=domain-security-policy-view-delete-form>
    <label>Domain: <input type=text id=domain-security-policy-view-delete-input
             type="url"
             placeholder="example.com"></label>
    <input type=submit value="Delete"
      id=domain-security-policy-view-delete-submit>
  </form>

</div>