Did you just receive the error "413: Request Entity Too Large” on Wordpress instance?

This is my brief guide to let you know what it means and how to resolve the issue.

My setup is using Wordpress by Bitnami hosted on the Google Cloud Platform, but it should work on any Wordpress set up that you have hosted on your own servers.

This is a guide on how to fix the "updating failed" error on WordPress 5.2.3 and Cloudflare. 

As context, I am running my blog on Wordpress, hosted on Google Cloud Platform (GCP) and using Cloudflare for my CDN (Content Delivery Network) to bring my content closer to my readers.

My key goals this year have been to update my blog to:

1. Ensure SSL and HTTPS is working correctly throughout the website to comply with Google's SEO requirements
2. Mixed Content is managed (so I am not showing content from both https:// and https:// sources, which affects my SEO)