diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2573badc..2daaa5dc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,9 @@ All notable changes to this project will be documented in this file.
 - Show the number of downtimes and total downtime minutes in "Check Details" page
 - Add the `pruneflips` management command
 
+## Bug Fixes
+- Fix javascript code to construct correct URLs when running from a subdirectory (#273)
+
 
 ## 1.8.0 - 2019-07-08
 
diff --git a/hc/front/urls.py b/hc/front/urls.py
index e23ba45a..a3c98d5e 100644
--- a/hc/front/urls.py
+++ b/hc/front/urls.py
@@ -10,7 +10,7 @@ check_urls = [
     path("pause/", views.pause, name="hc-pause"),
     path("remove/", views.remove_check, name="hc-remove-check"),
     path("log/", views.log, name="hc-log"),
-    path("status/", views.status_single),
+    path("status/", views.status_single, name="hc-status-single"),
     path("last_ping/", views.ping_details, name="hc-last-ping"),
     path("transfer/", views.transfer, name="hc-transfer"),
     path(
diff --git a/static/js/add_trello.js b/static/js/add_trello.js
index 9ebbdf88..258bcadd 100644
--- a/static/js/add_trello.js
+++ b/static/js/add_trello.js
@@ -15,9 +15,10 @@ $(function() {
         $("integration-settings").text("Loading...");
 
         token = tokenMatch[1];
+        var base = document.getElementById("base-url").getAttribute("href").slice(0, -1);
         var csrf = $('input[name=csrfmiddlewaretoken]').val();
         $.ajax({
-            url: "/integrations/add_trello/settings/",
+            url: base + "/integrations/add_trello/settings/",
             type: "post",
             headers: {"X-CSRFToken": csrf},
             data: {token: token},
diff --git a/static/js/checks.js b/static/js/checks.js
index 4e7b96a0..ad77a96d 100644
--- a/static/js/checks.js
+++ b/static/js/checks.js
@@ -1,8 +1,9 @@
 $(function () {
+    var base = document.getElementById("base-url").getAttribute("href").slice(0, -1);
 
     $(".my-checks-name").click(function() {
         var code = $(this).closest("tr.checks-row").attr("id");
-        var url = "/checks/" + code + "/name/";
+        var url = base + "/checks/" + code + "/name/";
 
         $("#update-name-form").attr("action", url);
         $("#update-name-input").val(this.dataset.name);
@@ -31,7 +32,7 @@ $(function () {
         var checkCode = $(this).closest("tr.checks-row").attr("id");
         var channelCode = $("#ch-" + idx).data("code");
 
-        var url = "/checks/" + checkCode + "/channels/" + channelCode + "/enabled";
+        var url = base + "/checks/" + checkCode + "/channels/" + channelCode + "/enabled";
 
         $.ajax({
             url: url,
@@ -52,12 +53,12 @@ $(function () {
         $('#ping-details-modal').modal("show");
 
         var code = $(this).closest("tr.checks-row").attr("id");
-        var lastPingUrl = "/checks/" + code + "/last_ping/";
+        var lastPingUrl = base + "/checks/" + code + "/last_ping/";
         $.get(lastPingUrl, function(data) {
             $("#ping-details-body" ).html(data);
         });
 
-        var logUrl = "/checks/" + code + "/log/";
+        var logUrl = base + "/checks/" + code + "/log/";
         $("#ping-details-log").attr("href", logUrl);
 
         return false;
@@ -79,7 +80,7 @@ $(function () {
 
         // Update hash
         if (window.history && window.history.replaceState) {
-            var url = $("#checks-table").data("list-url");;
+            var url = $("#checks-table").data("list-url");
             if (qs.length) {
                 url += "?" + $.param(qs);
             }
@@ -132,7 +133,7 @@ $(function () {
 
     $(".show-log").click(function(e) {
         var code = $(this).closest("tr.checks-row").attr("id");
-        var url = "/checks/" + code + "/details/";
+        var url = base + "/checks/" + code + "/details/";
         window.location = url;
         return false;
     });
diff --git a/static/js/collapse-native.js b/static/js/collapse-native.js
deleted file mode 100644
index 2da5eee2..00000000
--- a/static/js/collapse-native.js
+++ /dev/null
@@ -1,204 +0,0 @@
-// Native Javascript for Bootstrap 3 | Collapse
-// by dnp_theme
-
-(function(factory){
-
-	// CommonJS/RequireJS and "native" compatibility
-	if(typeof module !== "undefined" && typeof exports == "object") {
-		// A commonJS/RequireJS environment
-		if(typeof window != "undefined") {
-			// Window and document exist, so return the factory's return value.
-			module.exports = factory();
-		} else {
-			// Let the user give the factory a Window and Document.
-			module.exports = factory;
-		}
-	} else {
-		// Assume a traditional browser.
-		window.Collapse = factory();
-	}
-
-})(function(){
-
-	// COLLAPSE DEFINITION
-	// ===================
-	var Collapse = function( element, options ) {
-		options = options || {};
-		
-		this.btn = typeof element === 'object' ? element : document.querySelector(element);
-		this.accordion = null;
-		this.collapse = null;
-		this.duration = 300; // default collapse transition duration
-		this.options = {};
-		this.options.duration = /ie/.test(document.documentElement.className) ? 0 : (options.duration || this.duration);
-		this.init();
-	}
-
-	// COLLAPSE METHODS
-	// ================
-	Collapse.prototype = {
-
-		init : function() {
-			this.actions();
-			this.btn.addEventListener('click', this.toggle, false);
-
-			// allows the collapse to expand
-			// ** when window gets resized
-			// ** or via internal clicks handers such as dropwowns or any other
-			document.addEventListener('click', this.update, false);
-			window.addEventListener('resize', this.update, false)
-		},
-
-		actions : function() {
-			var self = this;
-
-			this.toggle = function(e) {
-				self.btn = self.getTarget(e).btn;
-				self.collapse = self.getTarget(e).collapse;
-
-				if (!/in/.test(self.collapse.className)) {
-					self.open(e)
-				} else {
-					self.close(e)
-				}
-			},
-			this.close = function(e) {
-				e.preventDefault();
-				self.btn = self.getTarget(e).btn;
-				self.collapse = self.getTarget(e).collapse;
-				self._close(self.collapse);
-				self.btn.className = self.btn.className.replace(' collapsed','');
-			},
-			this.open = function(e) {
-				e.preventDefault();
-				self.btn = self.getTarget(e).btn;
-				self.collapse = self.getTarget(e).collapse;
-				self.accordion = self.btn.getAttribute('data-parent') && self.getClosest(self.btn, self.btn.getAttribute('data-parent'));
-
-				self._open(self.collapse);
-				self.btn.className += ' collapsed';
-
-				if ( self.accordion !== null ) {
-					var active = self.accordion.querySelectorAll('.collapse.in'), al = active.length, i = 0;
-					for (i;i<al;i++) {
-						if ( active[i] !== self.collapse) self._close(active[i]);						
-					}
-				}
-			},
-			this._open = function(c) {
-
-				c.className += ' in';
-				c.style.height = 0;
-				c.style.overflow = 'hidden';
-				c.setAttribute('area-expanded','true');
-
-				// the collapse MUST have a childElement div to wrap them all inside, just like accordion/well
-				var oh = this.getMaxHeight(c).oh, br = this.getMaxHeight(c).br;
-
-				c.style.height = oh + br + 'px';
-				setTimeout(function() {
-					c.style.overflow = '';
-				}, self.options.duration)
-			},
-			this._close = function(c) {
-
-				c.style.overflow = 'hidden';
-				c.style.height = 0;
-				setTimeout(function() {
-					c.className = c.className.replace(' in','');
-					c.style.overflow = '';
-					c.setAttribute('area-expanded','false');
-				}, self.options.duration)
-			},
-			this.update = function(e) {
-				var evt = e.type, tg = e.target, closest = self.getClosest(tg,'.collapse'),
-					itms = document.querySelectorAll('.collapse.in'), i = 0, il = itms.length;
-				for (i;i<il;i++) {
-					var itm = itms[i], oh = self.getMaxHeight(itm).oh, br = self.getMaxHeight(itm).br;
-					
-					if ( evt === 'resize' && !/ie/.test(document.documentElement.className) ){
-						setTimeout(function() {
-							itm.style.height =  oh + br + 'px';
-						}, self.options.duration)						
-					} else if ( evt === 'click' && closest === itm ) {
-						itm.style.height =  oh + br + 'px';								
-					}
-				}
-			},
-			this.getMaxHeight = function(l) { // get collapse trueHeight and border
-				var t = l.children[0];
-				var cs = l.currentStyle || window.getComputedStyle(l);
-
-				return {
-					oh : getOuterHeight(t),
-					br : parseInt(cs.borderTop||0) + parseInt(cs.borderBottom||0)
-				}
-			},
-			this.getTarget = function(e) {
-				var t = e.currentTarget || e.srcElement,
-					h = t.href && t.getAttribute('href').replace('#',''),
-					d = t.getAttribute('data-target') && ( t.getAttribute('data-target') ),
-					id = h || ( d && /#/.test(d)) && d.replace('#',''),
-					cl = (d && d.charAt(0) === '.') && d, //the navbar collapse trigger targets a class
-					c = id && document.getElementById(id) || cl && document.querySelector(cl);
-
-				return {
-					btn : t,
-					collapse : c
-				}
-			},
-
-			this.getClosest = function (el, s) { //el is the element and s the selector of the closest item to find
-			// source http://gomakethings.com/climbing-up-and-down-the-dom-tree-with-vanilla-javascript/
-				var f = s.charAt(0);
-				for ( ; el && el !== document; el = el.parentNode ) {// Get closest match
-
-					if ( f === '.' ) {// If selector is a class
-						if ( document.querySelector(s) !== undefined ) { return el; }
-					}
-
-					if ( f === '#' ) { // If selector is an ID
-						if ( el.id === s.substr(1) ) { return el; }
-					}
-				}
-				return false;
-			}
-		}
-    }
-
-	var getOuterHeight = function (el) {
-		var s = el && el.currentStyle || window.getComputedStyle(el),
-			mtp = /px/.test(s.marginTop)	? Math.round(s.marginTop.replace('px',''))		: 0,
-			mbp = /px/.test(s.marginBottom)	? Math.round(s.marginBottom.replace('px',''))	: 0,
-			mte = /em/.test(s.marginTop)	? Math.round(s.marginTop.replace('em','')		* parseInt(s.fontSize)) : 0,
-			mbe = /em/.test(s.marginBottom)	? Math.round(s.marginBottom.replace('em','')	* parseInt(s.fontSize)) : 0;
-
-		return el.offsetHeight + parseInt( mtp ) + parseInt( mbp ) + parseInt( mte ) + parseInt( mbe ) //we need an accurate margin value	
-	}
-
-	// COLLAPSE DATA API
-	// =================
-    var Collapses = document.querySelectorAll('[data-toggle="collapse"]'), i = 0, cll = Collapses.length;
-	for (i;i<cll;i++) {
-		var item = Collapses[i], options = {};
-		options.duration = item.getAttribute('data-duration');
-		new Collapse(item,options);
-	}
-
-	//we must add the height to the pre-opened collapses
-	window.addEventListener('load', function() {
-		var openedCollapses = document.querySelectorAll('.collapse'), i = 0, ocl = openedCollapses.length;
-		for (i;i<ocl;i++) {
-			var oc = openedCollapses[i];
-			if (/in/.test(oc.className)) {
-				var s = oc.currentStyle || window.getComputedStyle(oc);
-				var oh = getOuterHeight(oc.children[0]);
-				var br = parseInt(s.borderTop||0) + parseInt(s.borderBottom||0);
-				oc.style.height = oh + br + 'px';
-			}
-		}
-	});
-
-	return Collapse;
-
-});
diff --git a/static/js/details.js b/static/js/details.js
index 2a0628ea..8515a00f 100644
--- a/static/js/details.js
+++ b/static/js/details.js
@@ -44,8 +44,7 @@ $(function () {
         });
     })
 
-    var code = document.getElementById("edit-timeout").dataset.code;
-    var statusUrl = "/checks/" + code + "/status/";
+    var statusUrl = document.getElementById("edit-timeout").dataset.statusUrl;
     var lastStatusText = "";
     var lastUpdated = "";
     adaptiveSetInterval(function() {
diff --git a/static/js/signup.js b/static/js/signup.js
index ba664d02..a0c23136 100644
--- a/static/js/signup.js
+++ b/static/js/signup.js
@@ -1,11 +1,12 @@
 $(function () {
 
     $("#signup-go").on("click", function() {
+        var base = document.getElementById("base-url").getAttribute("href").slice(0, -1);
         var email = $("#signup-email").val();
         var token = $('input[name=csrfmiddlewaretoken]').val();
 
         $.ajax({
-            url: "/accounts/signup/",
+            url: base + "/accounts/signup/",
             type: "post",
             headers: {"X-CSRFToken": token},
             data: {"identity": email},
diff --git a/static/js/tab-native.js b/static/js/tab-native.js
deleted file mode 100644
index fe9cbfb4..00000000
--- a/static/js/tab-native.js
+++ /dev/null
@@ -1,117 +0,0 @@
-// Native Javascript for Bootstrap 3 | Tab
-// by dnp_theme
-
-(function(factory){
-
-	// CommonJS/RequireJS and "native" compatibility
-	if(typeof module !== "undefined" && typeof exports == "object") {
-		// A commonJS/RequireJS environment
-		if(typeof window != "undefined") {
-			// Window and document exist, so return the factory's return value.
-			module.exports = factory();
-		} else {
-			// Let the user give the factory a Window and Document.
-			module.exports = factory;
-		}
-	} else {
-		// Assume a traditional browser.
-		window.Tab = factory();
-	}
-
-})(function(){
-
-	// TAB DEFINITION
-	// ===================
-	var Tab = function( element,options ) {
-		options = options || {};
-
-		this.tab = typeof element === 'object' ? element : document.querySelector(element);
-		this.tabs = this.tab.parentNode.parentNode;
-		this.dropdown = this.tabs.querySelector('.dropdown');
-		if ( this.tabs.classList.contains('dropdown-menu') ) {
-			this.dropdown = this.tabs.parentNode;
-			this.tabs = this.tabs.parentNode.parentNode;
-		}
-		this.options = {};
-
-		// default tab transition duration
-		this.duration = 150;
-		this.options.duration = document.documentElement.classList.contains('ie') ? 0 : (options.duration || this.duration);
-		this.init();
-	}
-
-	// TAB METHODS
-	// ================
-	Tab.prototype = {
-
-		init : function() {
-			var self = this;
-			self.actions();
-			self.tab.addEventListener('click', self.action, false);
-		},
-
-		actions : function() {
-			var self = this;
-
-			this.action = function(e) {
-				e = e || window.e;
-				var next = e.target; //the tab we clicked is now the next tab
-				var nextContent = document.getElementById(next.getAttribute('href').replace('#','')); //this is the actual object, the next tab content to activate
-
-				var activeTab = self.getActiveTab();
-				var activeContent = self.getActiveContent();
-
-				//toggle "active" class name
-				activeTab.classList.remove('active');
-				next.parentNode.classList.add('active');
-
-				//handle dropdown menu "active" class name
-				if ( !self.tab.parentNode.parentNode.classList.contains('dropdown-menu')){
-					self.dropdown && self.dropdown.classList.remove('active');
-				} else {
-					self.dropdown && self.dropdown.classList.add('active');
-				}
-
-				//1. hide current active content first
-				activeContent.classList.remove('in');
-
-				setTimeout(function() {
-					//2. toggle current active content from view
-					activeContent.classList.remove('active');
-					nextContent.classList.add('active');
-				}, self.options.duration);
-				setTimeout(function() {
-					//3. show next active content
-					nextContent.classList.add('in');
-				}, self.options.duration*2);
-				e.preventDefault();
-			},
-
-			this.getActiveTab = function() {
-				var activeTabs = self.tabs.querySelectorAll('.active');
-				if ( activeTabs.length === 1 && !activeTabs[0].classList.contains('dropdown') ) {
-					return activeTabs[0]
-				} else if ( activeTabs.length > 1 ) {
-					return activeTabs[activeTabs.length-1]
-				}
-			},
-			this.getActiveContent = function() {
-				var a = self.getActiveTab().getElementsByTagName('A')[0].getAttribute('href').replace('#','');
-				return a && document.getElementById(a)
-			}
-		}
-	}
-
-
-	// TAB DATA API
-	// =================
-    var Tabs = document.querySelectorAll("[data-toggle='tab'], [data-toggle='pill']"), tbl = Tabs.length, i=0;
-	for ( i;i<tbl;i++ ) {
-		var tab = Tabs[i], options = {};
-		options.duration = tab.getAttribute('data-duration') && tab.getAttribute('data-duration') || false;
-		new Tab(tab,options);
-	}
-
-	return Tab;
-
-});
diff --git a/static/js/update-timeout-modal.js b/static/js/update-timeout-modal.js
index 6c46659a..57328d7e 100644
--- a/static/js/update-timeout-modal.js
+++ b/static/js/update-timeout-modal.js
@@ -1,11 +1,13 @@
 $(function () {
+    var base = document.getElementById("base-url").getAttribute("href").slice(0, -1);
+
     $(".timeout-grace").click(function() {
         var code = $(this).closest("tr.checks-row").attr("id");
         if (!code) {
             code = this.dataset.code;
         }
-
-        var url = "/checks/" + code + "/timeout/";
+       
+        var url = base + "/checks/" + code + "/timeout/";
 
         $("#update-timeout-form").attr("action", url);
         $("#update-cron-form").attr("action", url);
@@ -28,32 +30,6 @@ $(function () {
         return false;
     });
 
-    function init(code, kind, timeout, grace, schedule, tz) {
-        var url = "/checks/" + code + "/timeout/";
-
-        $("#update-timeout-form").attr("action", url);
-        $("#update-cron-form").attr("action", url);
-
-        // Simple
-        periodSlider.noUiSlider.set(timeout);
-        graceSlider.noUiSlider.set(grace);
-
-        // Cron
-        currentPreviewHash = "";
-        $("#cron-preview").html("<p>Updating...</p>");
-        $("#schedule").val(schedule);
-        $("#tz").selectpicker("val", tz);
-        var minutes = parseInt(grace / 60);
-        $("#update-timeout-grace-cron").val(minutes);
-        updateCronPreview();
-
-        kind == "simple" ? showSimple() : showCron();
-        $('#update-timeout-modal').modal({"show":true, "backdrop":"static"});
-        return false;
-
-    }
-
-
     var MINUTE = {name: "minute", nsecs: 60};
     var HOUR = {name: "hour", nsecs: MINUTE.nsecs * 60};
     var DAY = {name: "day", nsecs: HOUR.nsecs * 24};
@@ -166,7 +142,7 @@ $(function () {
 
         var token = $('input[name=csrfmiddlewaretoken]').val();
         $.ajax({
-            url: "/checks/cron_preview/",
+            url: base + "/checks/cron_preview/",
             type: "post",
             headers: {"X-CSRFToken": token},
             data: {schedule: schedule, tz: tz},
diff --git a/templates/base.html b/templates/base.html
index 899ee573..460bcc85 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -67,7 +67,7 @@
                 <span class="icon-bar"></span>
             </button>
 
-            <a class="navbar-brand"  href="/">
+            <a id="base-url" class="navbar-brand"  href="{% url 'hc-index' %}">
             {% if request.user.is_authenticated and project %}
                 {{ project }}
                 <span class="caret"></span>
diff --git a/templates/front/details.html b/templates/front/details.html
index 34042088..f78cfc00 100644
--- a/templates/front/details.html
+++ b/templates/front/details.html
@@ -153,6 +153,7 @@
                     id="edit-timeout"
                     class="btn btn-sm btn-default timeout-grace"
                     data-code="{{ check.code }}"
+                    data-status-url="{% url 'hc-status-single' check.code %}"
                     data-kind="{{ check.kind }}"
                     data-timeout="{{ check.timeout.total_seconds }}"
                     data-grace="{{ check.grace.total_seconds }}"
diff --git a/templates/front/my_checks_desktop.html b/templates/front/my_checks_desktop.html
index 8561e5ec..14716ff7 100644
--- a/templates/front/my_checks_desktop.html
+++ b/templates/front/my_checks_desktop.html
@@ -112,7 +112,7 @@
             </div>
         </td>
         <td>
-            <div id="lpd-{{ check.code}}" class="last-ping">
+            <div id="lpd-{{ check.code }}" class="last-ping">
                 {% include "front/last_ping_cell.html" with check=check %}
             </div>
         </td>