Divi contact form issue with LiteSpeed plugin

We have a number of websites for our clients using the Divi contact form.

After some an intermittent number of days the contact form shows error on submitting “Please refresh the page and try again”

If I purge all in Lite Speed Cache the issue is resolved for a few days.

I have raised a support chat with Divi and they have confirmed

Thank you for contacting ET Support. If the issue is solved after the LiteSpeed cache clearing, then it comes from that plugin. It usually happens when the nonce is cached and if this nonce is expired it will fail.?

I checked Lite Speed documentation on ESI Nonce and see a predefined list which included the Divi contact form see https://github.com/litespeedtech/lscache_wp/blob/master/data/esi.nonces.txt

However we still getting the error.

I have applied *et* to the ESI nonce list in Lite Speed plugin settings and purged all site cache. solution found in older thread here.

I have approximately 50 websites that I need to identify the problem with and apply a working solution for all of them.

Will the *et* fix the problem or should the predefined list be doing all the necessary exclusions?

Report number: DXWNEWZQ

Report date: 09/10/2023 22:17:19

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