Show HN: Disabling View Source in Firefox and Edge

https://no-source.github.io/

by JeremyBanks • 8 years ago

6 5 8 years ago

no-source.github.io

Neat. How do people even discover a hack like this?

In this case, I was trying to use `document.open()` to replace the document with some text for debugging, and I noticed some strange side effects. :) The starting point was here: https://stackoverflow.com/questions/39233344/does-javascript...

core-questions• 8 years ago

For the lazy, here's the magic:

  <script>
    document.currentScript.remove();
    setTimeout(function() {
      // no rights reserved (BSD0) by Jeremy Banks <_@jeremy.ca>

      const html = document.documentElement.outerHTML;

      document.open('text/plain');
      document.write('view source disabled');
      document.close();

      document.documentElement.innerHTML = html;
    });
  </script>

clouddrover2• 8 years ago

Also doesn't work in Safari 11.0.3.

clouddrover2• 8 years ago

When I view source in Firefox I get the URL "view-source:wyciwyg://0/https://no-source.github.io/" which gives me the "view source disabled" message.

But if I then manually edit that in the location bar to "view-source:https://no-source.github.io/" I can view the source as expected.

Show HN: Disabling View Source in Firefox and Edge

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