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Editorial Team
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Asked: 2026-06-11T05:03:13+00:00

I suspect that a 3rd party analytics script on our page is causing our

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I suspect that a 3rd party analytics script on our page is causing our Google Adwords conversion script (later in the page) not to run where the a fore mentioned analytics fails to load external resources.

What is the standard behavior for a web browser in this scenario? Can subsequent scripts fail to run even if in separate tags?

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1 Answer

  1. Editorial Team

    If you have several script tags, each tag can fail on its own without affecting the other tags.

    But:

    • If some of the executed scripts modify the webpage, this might cause other scripts to fail because of the changes you did
    • The creation of global variables with conflicting names might cause trouble, too!

    EDIT: Tested in Opera:

    <html>
  <head>
    <script>=;</script>
    <script>alert("Hello!");</script>
  </head>
</html>

    This snippet will create an error:

    Inline script compilation
Syntax error at line 1 while loading: expected expression, got '='

    But it will still display:

    Hello!

    EDIT²: So, I uploaded the following test-code:

    <html>
    <body id="content" bgColor="red">
        <script>?=;</script>
        <script>document.getElementById("content").bgColor = "green";</script>
    </body>
</html>

    And executed it via Browsershots.org, so I can see the result w/o opening the shots 😉

    Working:

    • Firefox 1.5+ (XP / Ubuntu / Debian / FreeBSD)
    • Galeon 2.0.6 (Debian)
    • SeaMonkey 1.1.15+ (Debian / Win 2008 / XP)
    • Kazehakase 0.5.4 (Debian / FreeBSD)
    • Iceape 1.1.13+ (Debian)
    • Konqueror 3.5+ (Debian / FreeBSD)
    • Opera 9.64+ (FreeBSD)
    • Epiphany 2.22 (FreeBSD)
    • Icewasel 3.5.16 (Debian)
    • Chrome 1.0.154.59+ (Debian / Win 2008)
    • MSIE 9.0+ (Win 2008)
    • Flock 0.8+ (Win 2000 / 2008 / XP)
    • Lunascape 6.7 (Win 2003)
    • Camino 2.1.2 (OS X 10)
    • Avant 8.02+ (Win 2003 / 2008 / XP)
    • iCab 5.0 (OS X 10)
    • OmniWeb 622 (OS X 10)
    • Safari 3.2.3+ (OS X 10)
    • Stainless 0.8 (OS X 10)
    • Maxthon 3.4.2 (Win 8)
    • Navigator 9 (XP)
    • Netscape 8.1.3 (XP)

    A + means that it was successful on all following versions included in the test, EXCEPT the ones listed below

    NOT WORKING

    • Dillo 0.8.6; 2.0; 3.0.2 (Debian)
    • Lynx 2.8.8 (Gentoo) 😀
    • MSIE 4.01 (XP)
    • MSIE 5.5; 6.0; 7.0; 8.0 (Win 2008) ***
    • Chrome 18.0.1025.168 (Ubuntu 12.04 LTE)
    • SeaMonkey 2.12 (Ubuntu 12.04 LTE)

    *** Execution stopped by Window: 

    Syntax Error
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