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Asked: 2026-05-14T18:09:39+00:00

Currently I’m using the following as a bookmark in Firefox 3.6.3. It redirects me

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Currently I’m using the following as a bookmark in Firefox 3.6.3. It redirects me to the RFC just fine, but the active tab says [object Window]. What do I need to do to get rid of that artifact?

javascript:var rfc=prompt("RFC Number");window.open("http://ietf.org/rfc/rfc" + rfc + ".txt")
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1 Answer

  1. Editorial Team

    You can use also an auto-invoking anonymous function:

    javascript:(function(){var rfc=prompt("RFC Number");window.open("http://ietf.org/rfc/rfc" + rfc + ".txt");})();

    Since it doesn’t have a return value, by default will return undefined, preventing the navigation.

    It will work and your bookmarklet won’t introduce any global variables on the page.

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