HTTP 414 or 503 error when saving settings in WCFM

  • When I go to “MarketPlace” > Settings and I try to save anything, I receive an HTTP 503 error. Further analysis shows that the HTTP request is a URL with GET parameters that exceeds 25600 characters, which is large by any measure.

    Trying such an HTTP GET request on basically any website I (regardless of whether WCFM or WooCommerce is installed) returns either an HTTP 400 or HTTP 414 error (Request Too Long).

    If I change the <form> to have method="post", nothing is saved, which suggests to me that the code behind this form requires an HTTP GET request to work.

    How can I fix this? It’s unreasonably long for any sane GET request and since I don’t have the source code, I can’t change it to work with POST. The form uses the default WordPress template and this is on a default installation of WordPress through hosting provided Hostinger.com. Is there anything I can adjust with WCFM that can change this behavior (short of my provider upping the GET request limit)?

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