diff --git a/copyparty/__main__.py b/copyparty/__main__.py
index 479d569d..5c60d610 100755
--- a/copyparty/__main__.py
+++ b/copyparty/__main__.py
@@ -673,7 +673,7 @@ def run_argparse(
     ap2.add_argument("-p", metavar="PORT", type=u, default="3923", help="ports to bind (comma/range)")
     ap2.add_argument("--ll", action="store_true", help="include link-local IPv4/IPv6 even if the NIC has routable IPs (breaks some mdns clients)")
     ap2.add_argument("--rproxy", metavar="DEPTH", type=int, default=1, help="which ip to keep; [\033[32m0\033[0m]=tcp, [\033[32m1\033[0m]=origin (first x-fwd), [\033[32m2\033[0m]=cloudflare, [\033[32m3\033[0m]=nginx, [\033[32m-1\033[0m]=closest proxy")
-    ap2.add_argument("--webroot", metavar="PATH", type=u, default="", help="if reverse-proxying on a location instead of a dedicated subdomain, provide the location here")
+    ap2.add_argument("--rp-loc", metavar="PATH", type=u, default="", help="if reverse-proxying on a location instead of a dedicated domain/subdomain, provide the base location here (eg. /foo/bar)")
     if ANYWIN:
         ap2.add_argument("--reuseaddr", action="store_true", help="set reuseaddr on listening sockets on windows; allows rapid restart of copyparty at the expense of being able to accidentally start multiple instances")
     ap2.add_argument("--s-wr-sz", metavar="B", type=int, default=256*1024, help="socket write size in bytes")
@@ -1008,8 +1008,11 @@ def main(argv: Optional[list[str]] = None) -> None:
             retry = True
             lprint("\n[ {} ]:\n{}\n".format(fmtr, min_ex()))
 
-    assert al  # type: ignore
-    al.E = E  # __init__ is not shared when oxidized
+    try:
+        assert al  # type: ignore
+        al.E = E  # __init__ is not shared when oxidized
+    except:
+        sys.exit(1)
 
     if WINDOWS and not al.keep_qem:
         try:
diff --git a/copyparty/httpcli.py b/copyparty/httpcli.py
index 0190aec3..e64466a8 100644
--- a/copyparty/httpcli.py
+++ b/copyparty/httpcli.py
@@ -327,7 +327,7 @@ class HttpCli(object):
             if vpath.startswith(self.args.R):
                 vpath = vpath[len(self.args.R) + 1 :]
             else:
-                t = "incorrect --webroot or webserver config; expected vpath starting with [{}] but got [{}]"
+                t = "incorrect --rp-loc or webserver config; expected vpath starting with [{}] but got [{}]"
                 self.log(t.format(self.args.R, vpath), 1)
 
         self.ouparam = {k: zs for k, zs in uparam.items()}
@@ -2719,13 +2719,14 @@ class HttpCli(object):
     def tx_404(self, is_403: bool = False) -> bool:
         rc = 404
         if self.args.vague_403:
-            t = '<h1 id="n">404 not found &nbsp;┐( ´ -`)┌</h1><p id="o">or maybe you don\'t have access -- try logging in or <a href="/?h">go home</a></p>'
+            t = '<h1 id="n">404 not found &nbsp;┐( ´ -`)┌</h1><p id="o">or maybe you don\'t have access -- try logging in or <a href="{}/?h">go home</a></p>'
         elif is_403:
-            t = '<h1 id="p">403 forbiddena &nbsp;~┻━┻</h1><p id="q">you\'ll have to log in or <a href="/?h">go home</a></p>'
+            t = '<h1 id="p">403 forbiddena &nbsp;~┻━┻</h1><p id="q">you\'ll have to log in or <a href="{}/?h">go home</a></p>'
             rc = 403
         else:
-            t = '<h1 id="n">404 not found &nbsp;┐( ´ -`)┌</h1><p><a id="r" href="/?h">go home</a></p>'
+            t = '<h1 id="n">404 not found &nbsp;┐( ´ -`)┌</h1><p><a id="r" href="{}/?h">go home</a></p>'
 
+        t = t.format(self.args.SR)
         html = self.j2s("splash", this=self, qvpath=quotep(self.vpath), msg=t)
         self.reply(html.encode("utf-8"), status=rc)
         return True
diff --git a/copyparty/svchub.py b/copyparty/svchub.py
index d12cdb4f..b235325a 100644
--- a/copyparty/svchub.py
+++ b/copyparty/svchub.py
@@ -301,9 +301,9 @@ class SvcHub(object):
             vs = [x for x in vs if x]
             setattr(al, n, vs)
 
-        R = al.webroot
+        R = al.rp_loc
         if "//" in R or ":" in R:
-            t = "found URL in --webroot; it should be just the location, for example /foo/bar"
+            t = "found URL in --rp-loc; it should be just the location, for example /foo/bar"
             raise Exception(t)
 
         al.R = R = R.strip("/")
diff --git a/copyparty/web/browser.js b/copyparty/web/browser.js
index a7ca5351..682fbcc9 100644
--- a/copyparty/web/browser.js
+++ b/copyparty/web/browser.js
@@ -5750,7 +5750,8 @@ function apply_perms(newperms) {
 
 	ebi('acc_info').innerHTML = '<span id="srv_info2"><span>' + srvinf +
 		'</span></span><span' + aclass + axs + L.access + '</span>' + (acct != '*' ?
-			'<a href="/?pw=x">' + L.logout + acct + '</a>' : '<a href="/?h">Login</a>');
+			'<a href="' + SR + '/?pw=x">' + L.logout + acct + '</a>' :
+			'<a href="' + SR + '/?h">Login</a>');
 
 	var o = QSA('#ops>a[data-perm]');
 	for (var a = 0; a < o.length; a++) {
diff --git a/copyparty/web/splash.js b/copyparty/web/splash.js
index 7bb9037c..a35bee09 100644
--- a/copyparty/web/splash.js
+++ b/copyparty/web/splash.js
@@ -17,9 +17,9 @@ var Ls = {
 		"l1": "logg inn:",
 		"m1": "velkommen tilbake,",
 		"n1": "404: filen finnes ikke &nbsp;┐( ´ -`)┌",
-		"o1": 'eller kanskje du ikke har tilgang? prøv å logge inn eller <a href="/?h">gå hjem</a>',
+		"o1": 'eller kanskje du ikke har tilgang? prøv å logge inn eller <a href="' + SR + '/?h">gå hjem</a>',
 		"p1": "403: tilgang nektet &nbsp;~┻━┻",
-		"q1": 'du må logge inn eller <a href="/?h">gå hjem</a>',
+		"q1": 'du må logge inn eller <a href="' + SR + '/?h">gå hjem</a>',
 		"r1": "gå hjem",
 		".s1": "kartlegg",
 		"t1": "handling",
diff --git a/copyparty/web/util.js b/copyparty/web/util.js
index ea22f802..313683be 100644
--- a/copyparty/web/util.js
+++ b/copyparty/web/util.js
@@ -1680,7 +1680,7 @@ function xhrchk(xhr, prefix, e404, lvl, tag) {
 
         qsr('#cf_frame');
         var fr = mknod('iframe', 'cf_frame');
-        fr.src = '/?cf_challenge';
+        fr.src = SR + '/?cf_challenge';
         document.body.appendChild(fr);
     }