Title: webp + cloudfront (cdn) error Last modified: September 24, 2021 --- # webp + cloudfront (cdn) error * Resolved [futureyoon](https://wordpress.org/support/users/futureyoon/) * (@futureyoon) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/) * Hi * I would like to report an issue. error message – Server configuration error [https://prnt.sc/1tfwifo](https://prnt.sc/1tfwifo) * I know this is not the first time seeing this error. I have read all other support articles that you helped others. * Recently I was testing AWS Lightsail (Debian-Apache-Bitnami) + Cloudfront (CDN). Webp was working fine before I turned on Cloudfornt (CDN) – I can turn off CDN and enable webp back. * Before turnining cloudfront, I could see the .htaccess files in 3 locations were well updated automatically upon saving. But after I enabled the CDN, I could see the webp doesnt work any more with the error (screenshot above). I noticed the the contents of those .htaccess files (in all 3) are getting wiped off upon saving the webp settings (as part of trying to fix the issue). .htaccess method& nginx method both throw the same error.. * I tested with clean latest WP version without single plugin installed. so I can say it’s webp with cloudfront… * I hope you can experience it yourself too in AWS lightsail or you have already exp, please share how to overcome this error. * Thank you Viewing 13 replies - 1 through 13 (of 13 total) * Plugin Author [Mateusz Gbiorczyk](https://wordpress.org/support/users/mateuszgbiorczyk/) * (@mateuszgbiorczyk) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14905039) * Hello [@futureyoon](https://wordpress.org/support/users/futureyoon/), * Thanks for your message. * Yes, I tested this configuration. The problem is that by default, the **“AllowOverride”** parameter is set to **“None”** in the virtual host settings for Apache. * Here are the steps I followed: 1. Enter the Amazon Lightsail panel. 2. Go to the **“Instances”** tab. 3. Next to your WordPress instance, click **“Manage”**. 4. Click the **“Connect using SSH”** button. 5. A terminal window will open. 6. Edit the file using the command: `nano /opt/bitnami/apache2/conf/vhosts/wordpress- vhost.conf` 7. Find the value **“AllowOverride None”** and replace it with the value **“AllowOverride All”**. 8. Exit the file confirming that the changes are saved. 9. Run Apache restart process with command: `sudo /opt/bitnami/ctlscript.sh restart apache` * It is also described [here](https://docs.bitnami.com/aws/infrastructure/lamp/administration/use-htaccess/). * Did this solution help you? * Best, Mateusz * Thread Starter [futureyoon](https://wordpress.org/support/users/futureyoon/) * (@futureyoon) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14905408) * Thank you so much for the prompt reply. I tried but somehow didnt get fixed. * Take a look.. * I even rebooted the instanece too but still the same… Weird.. Please advise. * Thank you * Plugin Author [Mateusz Gbiorczyk](https://wordpress.org/support/users/mateuszgbiorczyk/) * (@mateuszgbiorczyk) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14905494) * [@futureyoon](https://wordpress.org/support/users/futureyoon/) This solution worked for me: [https://www.youtube.com/watch?v=2W4P9kI7NDY](https://www.youtube.com/watch?v=2W4P9kI7NDY) * Thread Starter [futureyoon](https://wordpress.org/support/users/futureyoon/) * (@futureyoon) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14905891) * Hi * Did you test this after enabling the distribution? From your screen, it appears that you have not enabled to distribution yet. [https://www.screencast.com/t/ZBdEvnyF](https://www.screencast.com/t/ZBdEvnyF) * Please confirm it after after enabling it. You will see the different behavior after enabling it.. * Thank you * Plugin Author [Mateusz Gbiorczyk](https://wordpress.org/support/users/mateuszgbiorczyk/) * (@mateuszgbiorczyk) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14905972) * [@futureyoon](https://wordpress.org/support/users/futureyoon/) I created distribution. The IP address has changed, but the plugin is still working properly. * Thread Starter [futureyoon](https://wordpress.org/support/users/futureyoon/) * (@futureyoon) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14906012) * Hmmm… interesting… * Do you see .htaccess file at the 3 locations? wp-content, wp-content/uploads, wp-content/uploads-webpc ? * I tried to set up a brandnew just now… I don’t see the htaccess files at above location any more… so it should be there or it should not?? * can you help yours (that is working on AWS)? I am out of idea… Please advise. * Thank you * Plugin Author [Mateusz Gbiorczyk](https://wordpress.org/support/users/mateuszgbiorczyk/) * (@mateuszgbiorczyk) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14906147) * [@futureyoon](https://wordpress.org/support/users/futureyoon/) Are you able to create a test environment for me where I could safely find a solution? You will find my e-mail address on [my website](https://gbiorczyk.pl/) – I do not want to enter it here. * Thread Starter [futureyoon](https://wordpress.org/support/users/futureyoon/) * (@futureyoon) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14906406) * sent 🙂 Thank you * Plugin Author [Mateusz Gbiorczyk](https://wordpress.org/support/users/mateuszgbiorczyk/) * (@mateuszgbiorczyk) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14907885) * [@futureyoon](https://wordpress.org/support/users/futureyoon/) Thank you very much for your support. I think I was able to find a solution. * Below is the updated AWS Lightsail configuration guide: 1. Enter the Amazon Lightsail panel. 2. Go to the **“Instances”** tab. 3. Next to your WordPress instance, click **“Manage”**. 4. Click the **“Connect using SSH”** button. 5. A terminal window will open. 6. Edit the file using the command: `nano /opt/bitnami/apache2/conf/vhosts/wordpress- vhost.conf` 7. Find the value **“AllowOverride None”** and replace it with the value **“AllowOverride All”**. 8. Exit the file confirming that the changes are saved. 9. Edit the file using the command: `nano /opt/bitnami/apache2/conf/vhosts/wordpress- https-vhost.conf` 10. Find the value **“AllowOverride None”** and replace it with the value **“AllowOverride All”**. 11. Exit the file confirming that the changes are saved. 12. Run Apache restart process with command: `sudo /opt/bitnami/ctlscript.sh restart apache` * Did this solution help you? * Thread Starter [futureyoon](https://wordpress.org/support/users/futureyoon/) * (@futureyoon) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14909309) * Thx for the update. but the issue still persists with the same error… I updated those 2 files and rebooted.. can you help check what else is missing? * Plugin Author [Mateusz Gbiorczyk](https://wordpress.org/support/users/mateuszgbiorczyk/) * (@mateuszgbiorczyk) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14909502) * [@futureyoon](https://wordpress.org/support/users/futureyoon/) It probably has to do with CDN and content caching in CloudFront. The plugin adds the _“Cache- Control: private”_ header, but the CDN probably ignores it. * I do not know to solve this problem. Forgive me, but I can not help you. * Thread Starter [futureyoon](https://wordpress.org/support/users/futureyoon/) * (@futureyoon) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14909739) * Hi * OK. I guess it’s something to do with the distribution setting. May I know the name/title of the webp cache? so that I can set CDN to accept the value form XXX header that webp is sending? * Thank you - This reply was modified 4 years, 8 months ago by [futureyoon](https://wordpress.org/support/users/futureyoon/). * Plugin Author [Mateusz Gbiorczyk](https://wordpress.org/support/users/mateuszgbiorczyk/) * (@mateuszgbiorczyk) * [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14909892) * [@futureyoon](https://wordpress.org/support/users/futureyoon/) See what the . htaccess file looks like in the /uploads directory. There you will find all the information. Viewing 13 replies - 1 through 13 (of 13 total) The topic ‘webp + cloudfront (cdn) error’ is closed to new replies. * ![](https://ps.w.org/webp-converter-for-media/assets/icon-256x256.png?rev=2636288) * [Converter for Media - Optimize images | Convert WebP & AVIF](https://wordpress.org/plugins/webp-converter-for-media/) * [Frequently Asked Questions](https://wordpress.org/plugins/webp-converter-for-media/#faq) * [Support Threads](https://wordpress.org/support/plugin/webp-converter-for-media/) * [Active Topics](https://wordpress.org/support/plugin/webp-converter-for-media/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/webp-converter-for-media/unresolved/) * [Reviews](https://wordpress.org/support/plugin/webp-converter-for-media/reviews/) ## Tags * [aws](https://wordpress.org/support/topic-tag/aws/) * [CloudFront](https://wordpress.org/support/topic-tag/cloudfront/) * [Lightsail](https://wordpress.org/support/topic-tag/lightsail/) * 13 replies * 2 participants * Last reply from: [Mateusz Gbiorczyk](https://wordpress.org/support/users/mateuszgbiorczyk/) * Last activity: [4 years, 8 months ago](https://wordpress.org/support/topic/webp-cloudfront-cdn-error/#post-14909892) * Status: resolved