Title: Plugin is blocking loopback requests in WordPress Last modified: November 24, 2017 --- # Plugin is blocking loopback requests in WordPress * Resolved [Dpsachou](https://wordpress.org/support/users/dpsachou/) * (@dpsachou) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/) * When activating the plugin, loopback requests to the webpage are prevented, something needed for the new WordPress 4.9 in order to save files with the editor. This was tested with WordPress official plugin “Health Check”. Viewing 12 replies - 1 through 12 (of 12 total) * Plugin Author [iSaumya](https://wordpress.org/support/users/isaumya/) * (@isaumya) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9717216) * Can you let me know what problem you are having and how to replicate the same issue on my end? * Plugin Author [iSaumya](https://wordpress.org/support/users/isaumya/) * (@isaumya) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9717371) * Thanks for reporting the issue and I’ve seen it now. Trying to fix it asap. Unfortunately there is not much documentation about what could be causing this. Trying my best to fix it as early as possible. Thanks for reporting it. * Plugin Author [iSaumya](https://wordpress.org/support/users/isaumya/) * (@isaumya) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9717396) * Found the issue. Pushing an updated soon. * Plugin Author [iSaumya](https://wordpress.org/support/users/isaumya/) * (@isaumya) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9717420) * Pushed v1.5.7 which has fixed this bug. Also Tested with the Health Check plugin& edited files directly in the editor to ensure there is no such issues. Please update to v1.5.7 immediately. * > [View post on imgur.com](https://imgur.com/q61YSg9) * Plugin Author [iSaumya](https://wordpress.org/support/users/isaumya/) * (@isaumya) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9717922) * There is a minor bug in v1.5.7. Please update to v1.5.8 * Thread Starter [Dpsachou](https://wordpress.org/support/users/dpsachou/) * (@dpsachou) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9717963) * Hi, * Well glad that you fixed it, wow this was a quick response. * WP Server Stats is a great plug in, I would not want to dismiss it because of this issue. The thing is, many other plugins are causing the loopback issue. Is there a specific script or command that causes it? * Plugin Author [iSaumya](https://wordpress.org/support/users/isaumya/) * (@isaumya) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9718002) * Well, I don’t know about other plugins but I can tell you what caused it in WP Server Stats hopefully it will help others as well. * You see, from Day 1 WP Core Team decided not to use SESSION variables inside WP for some reason. But for years developers can still user SESSION variables inside their codes with some occasional PHP Notice. But it seems from v4.9 WP core has made sure that session cannot be used inside WP. So, if you are using something like `session_start()` PHP function, it will throw that loopback issue. * The only solution to this is rewrite your code in such a way that to do not use SESSION in any way whatsoever. * In WP Server Stats there was a couple of places where session has been used, so I basically have to rewrite codebase ensuring no feature loss while not using session in any way whatsoever. * No sure if the same problem remains for other plugins or not but this was my findings. * P.S.: If you liked this plugin, please consider providing a review and if possible donating some amount for future development. * Thanks. * Thread Starter [Dpsachou](https://wordpress.org/support/users/dpsachou/) * (@dpsachou) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9718054) * I get it now, but I don’t understand what’s wrong with php sessions. As far as I know, they don’t pose a security or other risk. Thank you for the detailed answer. * I am impressed that you found the solution so quickly. You should inform the WordPress developers in [this thread](https://wordpress.org/support/topic/cant-edit-main-theme-php-files-after-upgrading-to-4-9) as they are trying to replicate the issue for days now. * I will definitely consider a donation. - This reply was modified 8 years, 6 months ago by [Dpsachou](https://wordpress.org/support/users/dpsachou/). * Plugin Author [iSaumya](https://wordpress.org/support/users/isaumya/) * (@isaumya) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9718134) * Thank you. Looking forward to your plugin review and donation. * Thread Starter [Dpsachou](https://wordpress.org/support/users/dpsachou/) * (@dpsachou) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9718193) * Hello again, * I just made a test with the old version of the plugin, and the problem solved with a session_write_close() command at the end of wp-server-stats.php file * [Screenshot](https://imgur.com/a/YlbSV) - This reply was modified 8 years, 6 months ago by [Dpsachou](https://wordpress.org/support/users/dpsachou/). * Plugin Author [iSaumya](https://wordpress.org/support/users/isaumya/) * (@isaumya) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9718210) * Yes I know. But it’s better to avoid session entirely as WP core doesn’t use it and not really supports it as well. So, now the plugin don’t use session. Also there is couple of issues with using session as not all plugin properly opens and close session. So better entirely avoiding it. * Thread Starter [Dpsachou](https://wordpress.org/support/users/dpsachou/) * (@dpsachou) * [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9718243) * Oh well ok then. Glad this was fixed 🙂 Viewing 12 replies - 1 through 12 (of 12 total) The topic ‘Plugin is blocking loopback requests in WordPress’ is closed to new replies. * ![](https://ps.w.org/wp-server-stats/assets/icon-256x256.png?rev=1273709) * [WP Server Health Stats](https://wordpress.org/plugins/wp-server-stats/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-server-stats/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-server-stats/) * [Active Topics](https://wordpress.org/support/plugin/wp-server-stats/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-server-stats/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-server-stats/reviews/) * 12 replies * 2 participants * Last reply from: [Dpsachou](https://wordpress.org/support/users/dpsachou/) * Last activity: [8 years, 6 months ago](https://wordpress.org/support/topic/plugin-is-blocking-loopback-requests-in-wordpress/#post-9718243) * Status: resolved