Content Security Policy violation when loading the Report.html

achinta.paul65 · April 18, 2025, 12:02pm

Hi All,

I am fairly new to the newman-reporter-htmlextra hence do not have much information/knowledge about it. But while working for one of the projects where newman-reporter-htmlextra report is used, I see that the html report loads but some of the functionality does not work. I am seeing this issue after I removed the unsafe-inline tag from the CSP (content security policy) configuration in response header. unsafe-inline tag is removed, as it was violating the CSP validation. I see the following error attached screen shot. Any help would be great.

Thanks,
Paul

achinta.paul65 · April 18, 2025, 1:19pm

@danny-dainton any help on this would be great.

Thanks
Paul

danny-dainton · April 18, 2025, 1:28pm

Hey

The template that creates the final report uses a number of different external/3rd party tools, it pulls the code in for these via a CDN reference in the template html.

github.com/DannyDainton/newman-reporter-htmlextra

lib%2Fdashboard-template.hbs

main


      
          <!DOCTYPE html>
          <html lang="en" style="overflow-y: scroll;">
          <head>
            <meta charset="UTF-8">
            <title>{{browserTitle}}</title>
            <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.13.0/css/all.min.css">
            <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
            <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/10.1.2/styles/default.min.css">
            <link rel="stylesheet" href="https://cdn.datatables.net/v/bs4/dt-1.10.18/datatables.min.css"/>
          
          <style>
          code.renderMarkdown table, code.renderMarkdown th, code.renderMarkdown td {
              border: 1px solid black;
              width: max-content;
              padding: .75rem;
          }
          
          .theme-dark {
              --background-color: #222;

github.com/DannyDainton/newman-reporter-htmlextra

lib%2Fdashboard-template.hbs

main


      
                  </div>
              </div>
              </div>
          {{/isNotIn}}
          {{/each}}
          {{/isNotIn}}
          {{/inline}}
          
          <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
          <script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.2.1/js/bootstrap.bundle.min.js"></script>
          <script src="https://cdn.datatables.net/v/bs4/dt-1.10.18/datatables.min.js"></script>
          <script src="https://cdnjs.cloudflare.com/ajax/libs/clipboard.js/2.0.0/clipboard.min.js"></script>
          <script src="https://cdnjs.cloudflare.com/ajax/libs/remarkable/1.7.1/remarkable.min.js"></script>
          {{#eq noSyntaxHighlighting false}}
          <script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/10.1.2/highlight.min.js"></script>
          <script>hljs.initHighlightingOnLoad();</script>
          {{/eq}}
          
          <!-- Set slider initial position depending on the localstorage state -->
          
          <script>

From the error, it looks like datatables is the library that’s causing it. That’s the part that creates the test results table in each request.

You could take a copy of the template, update the reference and then use that template in the reporter command.

--reporter-htmlextra-template <path-to-template-file>

The project has it’s own repo, please feel free to raise an issue on there.

You can also run your Collection using the Postman CLI which has it’s own built-in HTML reporter that provides a very similar output as my reporter.

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Content Security Policy violation when loading the Report.html

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