Viktor
Oct 14, 2010
  7783
(2 votes)

Querystring too long in EPiServer Composer

Stumbled upon an issue with EPiServer Composer 4 and that the query string was too long. Not entirely sure how great this fix is out of a security stand point, but if anyone else knows a better solution please let me know.

The error
HTTP Error 404.15 - Not Found
The request filtering module is configured to deny a request where the query string is too long.

The solution

    <system.webServer>
        <security>
            <requestFiltering>
                <requestLimits maxQueryString="2097151" />
            </requestFiltering>
        </security>
</system.webServer>
Oct 14, 2010

Comments

May 15, 2012 01:06 PM

I'm using W2008 and IIS 7.5, and experied problems when trying to edit a layout block containing several other layoutblocks containing contentblocks. The generated querystring was insanely huge.

I solved it by adding a requestLimits tag under the location path "dropit/plugin/extension/ui/edit".















Please login to comment.
Latest blogs
Commerce 15 and CMS 13: Optimizely’s Next Step Toward AI-Powered, Graph-First Commerce

Optimizely is preparing to release Commerce 15 in mid-May 2026 , positioning this as a foundational shift—not just an upgrade. The direction is...

Augusto Davalos | May 7, 2026

The future of Content: Introducing Optimizely CMS 13

Optimizely In the rapidly evolving landscape of digital experience, the "monolithic vs. headless" debate is being replaced by a more sophisticated...

Aniket | May 6, 2026

Hide built in scheduled job from the admin UI

Ok so this probably goes into the not so useful section but late last night I got a veery strong feeling that all projects I am  involved with have...

Per Nergård (MVP) | May 6, 2026

Optimizely SaaS CMS Developer Certification Exam

The Optimizely SaaS CMS Developer Certification is an industry-recognized credential for developers and architects who build scalable, composable...

Megha Rathore | May 5, 2026