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Asked: 2026-05-10T21:11:35+00:00

As I use the web, I regularly get runtime errors (usually javascript) being reported

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As I use the web, I regularly get runtime errors (usually javascript) being reported via popups. This can make for a really unsatisfying user experience on many otherwise excellent websites and also makes me wonder what functionality I am not getting access to.

Why is this such a common issue? Is this down to a lack of testing or is it browser compatibility issues? What can be done to minimise this kind of issue?

Incidently I don’t have the ‘Display a notification about every script error’ checked.

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1 Answer

  1. Its a number of issues.

    1. Many web page creators copy and paste JavaScript code from the web. They are not programmers and may not appreciate the nuances of the language.
    2. Lack of good testing frameworks (At least I don’t know any). For Java we have JUNIT and .NET NUNIT etc. Its difficult to automate JavaScript testing at this time.
    3. Poor IDE support. Until recently most IDE’s did a poor job supporting JavaScript. Now I see more support but still not the kind that you get for the core languages.
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