Title: Missing or not expected HTTP response headers Last modified: August 31, 2016 --- # Missing or not expected HTTP response headers * Resolved [jeffersonpowers](https://wordpress.org/support/users/jeffersonpowers/) * (@jeffersonpowers) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/) * After updating to BackWPUp version 3.2.4, I get the following error message when I try to run a backup: * Missing or not expected HTTP response headers: date: Tue, 16 Feb 2016 19:26: 39 GMT server: Apache connection: close content-type: text/html; charset=iso- 8859-1 * Rolling back to BackWPUp version 3.2.3 removes the problem, and I am able to run backups normally. * [https://wordpress.org/plugins/backwpup/](https://wordpress.org/plugins/backwpup/) Viewing 15 replies - 1 through 15 (of 101 total) 1 [2](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/2/?output_format=md) [3](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/3/?output_format=md)… [5](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/5/?output_format=md) [6](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/6/?output_format=md) [7](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/7/?output_format=md) [→](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/2/?output_format=md) * [Tom Palmer](https://wordpress.org/support/users/tompalmer999/) * (@tompalmer999) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072321) * Same problem here… * Plugin Contributor [Daniel Hüsken](https://wordpress.org/support/users/danielhuesken/) * (@danielhuesken) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072349) * There schould be something more wiht backwpup in the header. Will be some headers removed on your installation ? * Thread Starter [jeffersonpowers](https://wordpress.org/support/users/jeffersonpowers/) * (@jeffersonpowers) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072390) * I’m sorry, I don’t know what that means. Can you please clarify what you’re asking? * [Tom Palmer](https://wordpress.org/support/users/tompalmer999/) * (@tompalmer999) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072412) * I have not removed any headers. * My backups also work when reverting to the earlier BackWPup version. * [dhavid](https://wordpress.org/support/users/sirmbhe/) * (@sirmbhe) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072471) * I also got the same error? May I know, which version is working? I’ve been trying last 2 version prior to the recent one. * Plugin Contributor [Daniel Hüsken](https://wordpress.org/support/users/danielhuesken/) * (@danielhuesken) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072472) * I have change a littel thing on checking in the last version. Now there will be a header `x-backwpup...` send and checked if that header comes back. * is a reverse proxy active? * [dhavid](https://wordpress.org/support/users/sirmbhe/) * (@sirmbhe) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072473) * Not sure about reverse proxy, but my stack is nginx + hhvm + mariadb + redis cache * It is installed using easyengine script. * [sokratesagogo](https://wordpress.org/support/users/sokratesagogo/) * (@sokratesagogo) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072486) * Getting the same error and yes, the site is behind a reverse proxy.Reverting to the previous version of BackWPup restores functionality * Thread Starter [jeffersonpowers](https://wordpress.org/support/users/jeffersonpowers/) * (@jeffersonpowers) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072488) * I’m sorry, I don’t know what this means: “Now there will be a header x-backwpup… send and checked if that header comes back. is a reverse proxy active?” * I tried updating the plugin on a different WordPress website hosted with a different hosting company, and this is the error message I get: * ``` Missing or not expected HTTP response headers: date: Fri, 19 Feb 2016 17:14:09 GMT server: Apache/2.2.31 allow: GET, POST, PUT cache-control: no-store, no-cache, must-revalidate expires: Sat, 26 Jul 1997 05:00:00 GMT pragma: no-cache set-cookie: (code deleted); path=/ connection: close content-type: text/html; charset=UTF-8 ``` * (Note that there was a string of letters & numbers after “set cookie” above, which I deleted in case it is a security risk). * So now I’m seeing the same issue across three websites hosted with two different hosting companies. These are all standard WordPress installs. * [Mirko](https://wordpress.org/support/users/miwalter/) * (@miwalter) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072491) * Same problem here: * Fehlender order nicht erwarteter HTTP response header: date: Sat, 20 Feb 2016 00:18:37 GMT server: Apache set-cookie: PHPSESSID=(removed by me); path=/ expires: Thu, 19 Nov 1981 08:52:00 GMT cache-control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 pragma: no-cache vary: Accept-Encoding content-encoding: gzip connection: close content-type: text/html; charset=UTF-8 * [99DEEPBLACK](https://wordpress.org/support/users/99deepblack/) * (@99deepblack) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072497) * Same problem here: * Fehlender order nicht erwarteter HTTP response header: date: Sat, 20 Feb 2016 17:36:22 GMT server: Apache/2.2.15 (CentOS) connection: close content-type: text/ html; charset=iso-8859-1 * [jbrian](https://wordpress.org/support/users/jbrian/) * (@jbrian) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072504) * I reverted back to a previous version of backwpup (from backup) and the error went away. This certainly looks like a bug in the 3.2.4 update. If you have not updated yet, don’t. * [CallMeAndy](https://wordpress.org/support/users/callmeandy/) * (@callmeandy) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072508) * Interesting – well I only loaded 3.2.4 for the first time on a clients site – used it many times elsewhere – replaced it with 3.2.3 but the problem has NOT gone away! * [mprahWeb](https://wordpress.org/support/users/mprahweb/) * (@mprahweb) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072509) * Same problem here… * [Dominic Heselmans](https://wordpress.org/support/users/better-world-webdevelopment/) * (@better-world-webdevelopment) * [10 years, 2 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/#post-7072510) * Same problem for all my sites and clients sites. Problem occurred when I updated to the latest version. Viewing 15 replies - 1 through 15 (of 101 total) 1 [2](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/2/?output_format=md) [3](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/3/?output_format=md)… [5](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/5/?output_format=md) [6](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/6/?output_format=md) [7](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/7/?output_format=md) [→](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/2/?output_format=md) The topic ‘Missing or not expected HTTP response headers’ is closed to new replies. * ![](https://ps.w.org/backwpup/assets/icon-256x256.png?rev=3236141) * [BackWPup – WordPress Backup & Restore Plugin](https://wordpress.org/plugins/backwpup/) * [Support Threads](https://wordpress.org/support/plugin/backwpup/) * [Active Topics](https://wordpress.org/support/plugin/backwpup/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/backwpup/unresolved/) * [Reviews](https://wordpress.org/support/plugin/backwpup/reviews/) ## Tags * [server](https://wordpress.org/support/topic-tag/server/) * 101 replies * 34 participants * Last reply from: [Christina Fuchs](https://wordpress.org/support/users/vanvox/) * Last activity: [9 years, 3 months ago](https://wordpress.org/support/topic/missing-or-not-expected-http-response-headers/page/7/#post-8681767) * Status: resolved