{"version":"1.0","provider_name":"Supercars.net","provider_url":"https:\/\/www.supercars.net\/blog","title":"Grand Prix History - The Pre-WWII Racing Years","type":"rich","width":600,"height":338,"html":"<blockquote class=\"wp-embedded-content\" data-secret=\"dLwwyExAml\"><a href=\"https:\/\/www.supercars.net\/blog\/grand-prix-history-the-pre-wwii-years\/\">Grand Prix History &#8211; The Pre-WWII Racing Years<\/a><\/blockquote><iframe sandbox=\"allow-scripts\" security=\"restricted\" src=\"https:\/\/www.supercars.net\/blog\/grand-prix-history-the-pre-wwii-years\/embed\/#?secret=dLwwyExAml\" width=\"600\" height=\"338\" title=\"&#8220;Grand Prix History &#8211; The Pre-WWII Racing Years&#8221; &#8212; Supercars.net\" data-secret=\"dLwwyExAml\" 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.supercars.net\/blog\/wp-includes\/js\/wp-embed.min.js\n\/* ]]> *\/\n<\/script>\n","thumbnail_url":"https:\/\/www.supercars.net\/blog\/wp-content\/uploads\/2010\/12\/Grand-Prix-History-Pre-War-Period-1.png","thumbnail_width":986,"thumbnail_height":658,"description":"Motor Racing History &#8211; The Pre-War Grand Prix Period Formula Libre Grand Prix racing in accordance with a strict formula based on engine size and weight was abandoned in 1928.In its place, races were run under Formula Libre rules. In lieu of the major manufacturers, drivers raced as privateers or in partnership with specialist racing-car builders such as Alfa Romeo, Maserati and Bugatti dominated racing during this period in the hands of drivers such as Louis Chiron. In 1929 William [&hellip;]"}