{"version":"1.0","provider_name":"24x7WPSupport Blog","provider_url":"https:\/\/www.24x7wpsupport.com\/blog","author_name":"Brian","author_url":"https:\/\/www.24x7wpsupport.com\/blog\/author\/24x7blog\/","title":"How To Fix WordPress Cannot Modify Header Error - 24x7wpsupport","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"EtzJoGKlyC\"><a href=\"https:\/\/www.24x7wpsupport.com\/blog\/how-to-fix-wordpress-cannot-modify-header-error\/\">How To Fix WordPress Cannot Modify Header Error<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.24x7wpsupport.com\/blog\/how-to-fix-wordpress-cannot-modify-header-error\/embed\/#?secret=EtzJoGKlyC\" width=\"600\" height=\"338\" title=\"&#8220;How To Fix WordPress Cannot Modify Header Error&#8221; &#8212; 24x7WPSupport Blog\" data-secret=\"EtzJoGKlyC\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\" class=\"wp-embedded-content\"><\/iframe><script type=\"text\/javascript\">\n\/* <![CDATA[ *\/\n\/*! This file is auto-generated *\/\n!function(d,l){\"use strict\";l.querySelector&&d.addEventListener&&\"undefined\"!=typeof URL&&(d.wp=d.wp||{},d.wp.receiveEmbedMessage||(d.wp.receiveEmbedMessage=function(e){var t=e.data;if((t||t.secret||t.message||t.value)&&!\/[^a-zA-Z0-9]\/.test(t.secret)){for(var s,r,n,a=l.querySelectorAll('iframe[data-secret=\"'+t.secret+'\"]'),o=l.querySelectorAll('blockquote[data-secret=\"'+t.secret+'\"]'),c=new RegExp(\"^https?:$\",\"i\"),i=0;i<o.length;i++)o[i].style.display=\"none\";for(i=0;i<a.length;i++)s=a[i],e.source===s.contentWindow&&(s.removeAttribute(\"style\"),\"height\"===t.message?(1e3<(r=parseInt(t.value,10))?r=1e3:~~r<200&&(r=200),s.height=r):\"link\"===t.message&&(r=new URL(s.getAttribute(\"src\")),n=new URL(t.value),c.test(n.protocol))&&n.host===r.host&&l.activeElement===s&&(d.top.location.href=t.value))}},d.addEventListener(\"message\",d.wp.receiveEmbedMessage,!1),l.addEventListener(\"DOMContentLoaded\",function(){for(var e,t,s=l.querySelectorAll(\"iframe.wp-embedded-content\"),r=0;r<s.length;r++)(t=(e=s[r]).getAttribute(\"data-secret\"))||(t=Math.random().toString(36).substring(2,12),e.src+=\"#?secret=\"+t,e.setAttribute(\"data-secret\",t)),e.contentWindow.postMessage({message:\"ready\",secret:t},\"*\")},!1)))}(window,document);\n\/\/# sourceURL=https:\/\/www.24x7wpsupport.com\/blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/www.24x7wpsupport.com\/blog\/wp-content\/uploads\/2019\/07\/how-to-fix-wordpress-cannot-modify-header-error-1.png","thumbnail_width":825,"thumbnail_height":460,"description":"In this blog we will help you to understand, how to fix WordPress cannot modify header error. Due to the extra empty spaces the PHP header error occurs, which should not be there in your files."}