'Sys' is undefined.... RRS feed

  • Question

  • User-2050755205 posted

    Ok after banging my head against a wall many many times I figured out this issue.

    'Sys' is undefined means that the Ajax dll can't find the java scripts it needs to run.

    In my case it was due to a bad SSL cert on the server, if I went to any of the pages via http "unsecure" it would work but if a page was behind https: "secure" it would throw a 'Sys' is undefined.

    I  learned this after multiple reconfigurations of the web.config changing dll versions from 1.0 to 3.5 etc.

    Also tried loading the java scripts on the page after ajax fired etc.

    So if you have triple checked everything double check that if it's on a secure page and try a page with ajax on it that isn't secure and see if the 'Sys' is undefined error pops up or not.

    Friday, September 23, 2011 5:04 PM


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