Title: Breaks JSON/REST-API Output Last modified: March 2, 2017 --- # Breaks JSON/REST-API Output * [ov3rfly](https://wordpress.org/support/users/ov3rfly/) * (@ov3rfly) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/) * WP Fastest Cache adds String “” to end of JSON/REST-API output of WordPress which leads to invalid JSON. * Examples: - hXXp://www.wpfastestcache.com/wp-json/wp/v2/posts - hXXp://www.wpfastestcache.com/wp-json/wp/v2/users * Please fix soon, thanks. - This topic was modified 9 years, 3 months ago by [ov3rfly](https://wordpress.org/support/users/ov3rfly/). Viewing 15 replies - 1 through 15 (of 31 total) 1 [2](https://wordpress.org/support/topic/breaks-json-api-output/page/2/?output_format=md) [3](https://wordpress.org/support/topic/breaks-json-api-output/page/3/?output_format=md) [→](https://wordpress.org/support/topic/breaks-json-api-output/page/2/?output_format=md) * Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/) * (@emrevona) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8871978) * Please contact me via email: [http://www.wpfastestcache.com/contact-us/](http://www.wpfastestcache.com/contact-us/) * Thread Starter [ov3rfly](https://wordpress.org/support/users/ov3rfly/) * (@ov3rfly) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8871990) * Why exactly? You can see the added `` at above example- links. These are standard WordPress REST-API links, [more here](https://developer.wordpress.org/rest-api/). - This reply was modified 9 years, 3 months ago by [ov3rfly](https://wordpress.org/support/users/ov3rfly/). * Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/) * (@emrevona) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872013) * because I wanna fix the problem with you. * Thread Starter [ov3rfly](https://wordpress.org/support/users/ov3rfly/) * (@ov3rfly) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872033) * No further input is necessary, testcases are right there on your server. * Spent already enough time on this before I saw that added html-comment… * Thanks for quick feedback and the plugin. * Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/) * (@emrevona) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872042) * ok 🙂 I will fix and let you know. * Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/) * (@emrevona) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872084) * you can exclude the api url as below. * ![wp-json](https://i0.wp.com/i.hizliresim.com/brloBG.png) * Thread Starter [ov3rfly](https://wordpress.org/support/users/ov3rfly/) * (@ov3rfly) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872134) * Thanks for quick workaround. * This should be fixed in a general way though, just think of other endpoints, anything can be there, see also [register_rest_route()](https://developer.wordpress.org/reference/functions/register_rest_route/). * Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/) * (@emrevona) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872241) * Now I added a feature which excludes the url which start with /wp-json. Is it enough? * Thread Starter [ov3rfly](https://wordpress.org/support/users/ov3rfly/) * (@ov3rfly) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872269) * Not enough, latest Contact Form 7 uses `/contact-forms` as an endpoint. And others will follow. * Real fix: Do not add HTML-comments to non-HTML data. * Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/) * (@emrevona) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872278) * > Not enough, latest Contact Form 7 uses /contact-forms as an endpoint. And others > will follow. * Can you tell me the url please? * > Real fix: Do not add HTML-comments to non-HTML data. * It makes the debug easier. * Thread Starter [ov3rfly](https://wordpress.org/support/users/ov3rfly/) * (@ov3rfly) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872296) * > Can you tell me the url please? * [https://wordpress.org/plugins/contact-form-7/](https://wordpress.org/plugins/contact-form-7/) * > It makes the debug easier. * And it breaks REST-API endpoints. * Thread Starter [ov3rfly](https://wordpress.org/support/users/ov3rfly/) * (@ov3rfly) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872299) * See also here, this has been a problem for others as well: - [https://github.com/wp-cli/wp-cli/issues/2167](https://github.com/wp-cli/wp-cli/issues/2167) - [https://github.com/WP-API/WP-API/issues/2691](https://github.com/WP-API/WP-API/issues/2691) * Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/) * (@emrevona) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872307) * We should move step by step. Can you show me a sample url for “/contact-forms as an endpoint”? * Thread Starter [ov3rfly](https://wordpress.org/support/users/ov3rfly/) * (@ov3rfly) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872323) * See here: `.../contact-form-7/includes/rest-api.php` * But comparing strings in URLs is not an option, anything can be an endpoint, see register_rest_route() docs, linked above. * Real fix: Do not add HTML-comments to non-HTML data. * For debug try something like this: `if ( WP_DEBUG ) error_log( 'WPFC: ' );` * Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/) * (@emrevona) * [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/#post-8872330) * You are right but I cannot detect the json pages sometimes with $_SERVER[“HTTP_ACCEPT”]. Viewing 15 replies - 1 through 15 (of 31 total) 1 [2](https://wordpress.org/support/topic/breaks-json-api-output/page/2/?output_format=md) [3](https://wordpress.org/support/topic/breaks-json-api-output/page/3/?output_format=md) [→](https://wordpress.org/support/topic/breaks-json-api-output/page/2/?output_format=md) The topic ‘Breaks JSON/REST-API Output’ is closed to new replies. * ![](https://ps.w.org/wp-fastest-cache/assets/icon-256x256.png?rev=2064586) * [WP Fastest Cache - WordPress Cache Plugin](https://wordpress.org/plugins/wp-fastest-cache/) * [Frequently Asked Questions](https://wordpress.org/plugins/wp-fastest-cache/#faq) * [Support Threads](https://wordpress.org/support/plugin/wp-fastest-cache/) * [Active Topics](https://wordpress.org/support/plugin/wp-fastest-cache/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/wp-fastest-cache/unresolved/) * [Reviews](https://wordpress.org/support/plugin/wp-fastest-cache/reviews/) ## Tags * [api](https://wordpress.org/support/topic-tag/api/) * [corrupt](https://wordpress.org/support/topic-tag/corrupt/) * [json](https://wordpress.org/support/topic-tag/json/) * [rest](https://wordpress.org/support/topic-tag/rest/) * 31 replies * 3 participants * Last reply from: [Emre Vona](https://wordpress.org/support/users/emrevona/) * Last activity: [9 years, 3 months ago](https://wordpress.org/support/topic/breaks-json-api-output/page/3/#post-8909733) * Status: not resolved