<!DOCTYPE html><html><head><title>Log in to Facebook | Facebook</title><meta name="viewport" content="user-scalable=no,initial-scale=1,maximum-scale=1" /><link href="https://static.xx.fbcdn.net/rsrc.php/v3/ya/r/O2aKM2iSbOw.png" rel="shortcut icon" sizes="196x196" /><meta name="referrer" content="origin-when-crossorigin" id="meta_referrer" /><meta name="theme-color" content="#3b5998" /><link type="text/css" rel="stylesheet" href="https://static.xx.fbcdn.net/rsrc.php/v3/ym/l/0,cross/aTHLvOFWLgN.css?_nc_x=Ij3Wp8lg5Kz" data-bootloader-hash="fLeGl" crossorigin="anonymous" /><link type="text/css" rel="stylesheet" href="https://static.xx.fbcdn.net/rsrc.php/v3/yD/l/0,cross/p2df78cp81n.css?_nc_x=Ij3Wp8lg5Kz" data-bootloader-hash="tBA9D" crossorigin="anonymous" /><link type="text/css" rel="stylesheet" href="https://static.xx.fbcdn.net/rsrc.php/v3/yL/l/0,cross/iP08f_SAfC5.css?_nc_x=Ij3Wp8lg5Kz" data-bootloader-hash="+BP0M" crossorigin="anonymous" /><link type="text/css" rel="stylesheet" href="https://static.xx.fbcdn.net/rsrc.php/v3/y-/l/0,cross/DS1rwlnTwrJ.css?_nc_x=Ij3Wp8lg5Kz" data-bootloader-hash="4l+ZK" crossorigin="anonymous" /><link type="text/css" rel="stylesheet" href="https://static.xx.fbcdn.net/rsrc.php/v3/yT/l/0,cross/IxxDAbiZepi.css?_nc_x=Ij3Wp8lg5Kz" data-bootloader-hash="XlNyQ" crossorigin="anonymous" /><script id="u_0_f" nonce="2YquwERD">function envFlush(a){function b(b){for(var c in a)b[c]=a[c]}window.requireLazy?window.requireLazy(["Env"],b):(window.Env=window.Env||{},b(window.Env))}envFlush({"timeslice_heartbeat_config":{"pollIntervalMs":33,"idleGapThresholdMs":60,"ignoredTimesliceNames":{"requestAnimationFrame":true,"Event listenHandler mousemove":true,"Event listenHandler mouseover":true,"Event listenHandler mouseout":true,"Event listenHandler scroll":true},"isHeartbeatEnabled":true,"isArtilleryOn":false},"shouldLogCounters":true,"timeslice_categories":{"react_render":true,"reflow":true},"sample_continuation_stacktraces":true,"dom_mutation_flag":true});</script><script nonce="2YquwERD">document.domain = 'facebook.com';</script><script nonce="2YquwERD">__DEV__=0;</script><script id="u_0_g" crossorigin="anonymous" src="https://static.xx.fbcdn.net/rsrc.php/v3/yE/r/K_kXiQDCpLS.js?_nc_x=Ij3Wp8lg5Kz" data-bootloader-hash="JQevv" nonce="2YquwERD"></script><script id="u_0_d" nonce="2YquwERD">CavalryLogger=window.CavalryLogger||function(a){this.lid=a,this.transition=!1,this.metric_collected=!1,this.is_detailed_profiler=!1,this.instrumentation_started=!1,this.pagelet_metrics={},this.events={},this.ongoing_watch={},this.values={t_cstart:window._cstart},this.piggy_values={},this.bootloader_metrics={},this.resource_to_pagelet_mapping={},this.initializeInstrumentation&&this.initializeInstrumentation()},CavalryLogger.prototype.setIsDetailedProfiler=function(a){this.is_detailed_profiler=a;return this},CavalryLogger.prototype.setTTIEvent=function(a){this.tti_event=a;return this},CavalryLogger.prototype.setValue=function(a,b,c,d){d=d?this.piggy_values:this.values;(typeof d[a]==="undefined"||c)&&(d[a]=b);return this},CavalryLogger.prototype.getLastTtiValue=function(){return this.lastTtiValue},CavalryLogger.prototype.setTimeStamp=CavalryLogger.prototype.setTimeStamp||function(a,b,c,d){this.mark(a);var e=this.values.t_cstart||this.values.t_start;e=d?e+d:CavalryLogger.now();this.setValue(a,e,b,c);this.tti_event&&a==this.tti_event&&(this.lastTtiValue=e,this.setTimeStamp("t_tti",b));return this},CavalryLogger.prototype.mark=typeof console==="object"&&console.timeStamp?function(a){console.timeStamp(a)}:function(){},CavalryLogger.prototype.addPiggyback=function(a,b){this.piggy_values[a]=b;return this},CavalryLogger.instances={},CavalryLogger.id=0,CavalryLogger.getInstance=function(a){typeof a==="undefined"&&(a=CavalryLogger.id);CavalryLogger.instances[a]||(CavalryLogger.instances[a]=new CavalryLogger(a));return CavalryLogger.instances[a]},CavalryLogger.setPageID=function(a){if(CavalryLogger.id===0){var b=CavalryLogger.getInstance();CavalryLogger.instances[a]=b;CavalryLogger.instances[a].lid=a;delete CavalryLogger.instances[0]}CavalryLogger.id=a},CavalryLogger.now=function(){return window.performance&&performance.timing&&performance.timing.navigationStart&&performance.now?performance.now()+performance.timing.navigationStart:new Date().getTime()},CavalryLogger.prototype.measureResources=function(){},CavalryLogger.prototype.profileEarlyResources=function(){},CavalryLogger.getBootloaderMetricsFromAllLoggers=function(){},CavalryLogger.start_js=function(){},CavalryLogger.done_js=function(){};CavalryLogger.getInstance().setTTIEvent("t_domcontent");CavalryLogger.prototype.measureResources=function(a,b){if(!this.log_resources)return;var c="bootload/"+a.name;if(this.bootloader_metrics[c]!==void 0||this.ongoing_watch[c]!==void 0)return;var d=CavalryLogger.now();this.ongoing_watch[c]=d;"start_"+c in this.bootloader_metrics||(this.bootloader_metrics["start_"+c]=d);b&&!("tag_"+c in this.bootloader_metrics)&&(this.bootloader_metrics["tag_"+c]=b);if(a.type==="js"){c="js_exec/"+a.name;this.ongoing_watch[c]=d}},CavalryLogger.prototype.stopWatch=function(a){if(this.ongoing_watch[a]){var b=CavalryLogger.now(),c=b-this.ongoing_watch[a];this.bootloader_metrics[a]=c;var d=this.piggy_values;a.indexOf("bootload")===0&&(d.t_resource_download||(d.t_resource_download=0),d.resources_downloaded||(d.resources_downloaded=0),d.t_resource_download+=c,d.resources_downloaded+=1,d["tag_"+a]=="_EF_"&&(d.t_pagelet_cssload_early_resources=b));delete this.ongoing_watch[a]}return this},CavalryLogger.getBootloaderMetricsFromAllLoggers=function(){var a={};Object.values(window.CavalryLogger.instances).forEach(function(b){b.bootloader_metrics&&Object.assign(a,b.bootloader_metrics)});return a},CavalryLogger.start_js=function(a){for(var b=0;b<a.length;++b)CavalryLogger.getInstance().stopWatch("js_exec/"+a[b])},CavalryLogger.done_js=function(a){for(var b=0;b<a.length;++b)CavalryLogger.getInstance().stopWatch("bootload/"+a[b])},CavalryLogger.prototype.profileEarlyResources=function(a){for(var b=0;b<a.length;b++)this.measureResources({name:a[b][0],type:a[b][1]?"js":""},"_EF_")};CavalryLogger.getInstance().