static getContentSecurityPolicyRow(cspIssues) {
    const requestUrls = new Set();
    for (const issue of cspIssues) {
      const requestUrl = issue.blockedURL;
      if (requestUrl) {
        requestUrls.add(requestUrl);
      }
    }
    return {
      issueType: 'Content security policy',
      subItems: {
        type: 'subitems',
        items: Array.from(requestUrls).map(url => {
          return {
            url,
          };
        }),
      },
    };
  }
@param {Array<LH.Crdp.Audits.ContentSecurityPolicyIssueDetails>} cspIssues
@return {LH.Audit.Details.TableItem}