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AskiaWeb

Manage CAWI / web surveys efficiently

In this article

    Redirect to a custom page on any WebProd error using pure JavaScript

    Summary This article demonstrates how and where to insert JavaScript so you can forward your respondents to a specific URL when any WebProd error is generated
    Applies to Web; WebProd; AskiaWeb
    Written for  Project Managers & Script Writers
    Keywords web ; webprod ; askiaext.dll ; redirect ; error ; java ; script ; javascript

    This article will demonstrate how to forward your respondents to a specific URL for any WebProd error.

    This is slightly different than this article, which shows how to forward respondents to a static .htm file you design, based on a specific WebProd error.

    For your reference, please see this link that lists all available WebProd error codes and their meanings.

    The script

    <div>Error: ??WEBPROD_ERROR??.</div><script>window.addEventListener('DOMContentLoaded', (event) => {window.location.replace("https://askia.com");});</script>

    The where

    The above script can be inserted into one of two locations:

    1) via the WebProd Configuration section in the WebProd Administrator interface via URL: https://yourserver.com/Webprod/.

    Login with your administrator credentials, click on the "Configuration" tab on the top-right of the page, expand the "WebProd configuration" section, and then look for the "General Error Page" input box.

    WebProd_Redirection_1_.png

    Paste your script string into this input box and then hit the "Submit" button at the bottom of the page to save.

    2) via the "HtmlGeneralErrorPage" column in the "WP_Const" table in the "WebProd" database.

    Simple SELECT query:

    SELECT HtmlGeneralErrorPage FROM [WebProd].[dbo].[WP_Const]

    In SSMS (SQL Server Management Studio), you should be able to edit that table and then paste in the script.

    WebProd_Redirection_2_.png

    Please note: regardless if you insert it into the WebProd interface, or directly in SQL, the script needs to be "minified" to fit on a single line. Do not try to split the code into multiple lines.

    Attention: once you've inserted the script, you will need to restart the WebProdAppPool in IIS for your changes to take effect.

    That's it. Now any time a general error is produced by WebProd for any survey, the initial error message will show up on the screen for a split moment, and then the JavaScript will forward your respondent to whatever URL you designated.

    You can test this on your server by replicating a "1003" error, simply by not providing enough parameters on the survey URL (e.g. https://yourserver.com/WebProd/cgi-bin/askiaext.dll?).

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