diff --git a/packages/browser-stdenv/.gitignore b/packages/browser-stdenv/.gitignore
index 39ee724..87499dc 100644
--- a/packages/browser-stdenv/.gitignore
+++ b/packages/browser-stdenv/.gitignore
@@ -1,2 +1,3 @@
 index.js
 index.min.js
+*.js.map
diff --git a/packages/browser-stdenv/boot.js b/packages/browser-stdenv/boot.js
index b5c0e60..1ccc0d1 100644
--- a/packages/browser-stdenv/boot.js
+++ b/packages/browser-stdenv/boot.js
@@ -10,7 +10,9 @@ const SyndicateBrowserStdenv = {
 };
 
 window.addEventListener('DOMContentLoaded', () => {
-  if (SyndicateBrowserStdenv.autoboot) {
+  if (window.SyndicateBrowserStdenv_autoboot === void 0 ||
+      window.SyndicateBrowserStdenv_autoboot)
+  {
     SyndicateBrowserStdenv.boot();
   }
 });
diff --git a/packages/browser-stdenv/build-aggregate.sh b/packages/browser-stdenv/build-aggregate.sh
index b14c480..2c81eff 100755
--- a/packages/browser-stdenv/build-aggregate.sh
+++ b/packages/browser-stdenv/build-aggregate.sh
@@ -14,6 +14,13 @@ cat \
     boot.js \
     > index.js
 
+cp \
+    $M/@syndicate-lang/core/dist/syndicate.js.map \
+    $M/@syndicate-lang/html2/dist/syndicate-html2.js.map \
+    $M/@syndicate-lang/ws-relay/dist/syndicate-ws-relay.js.map \
+    $M/@syndicate-lang/compiler/dist/syndicate-compiler.js.map \
+    .
+
 cat \
     $M/@preserves/core/dist/preserves.min.js \
     $M/@preserves/schema/dist/preserves-schema.min.js \
@@ -25,3 +32,10 @@ cat \
     $M/@syndicate-lang/compiler/dist/syndicate-browser-compiler.js \
     boot.js \
     > index.min.js
+
+cp \
+    $M/@syndicate-lang/core/dist/syndicate.min.js.map \
+    $M/@syndicate-lang/html2/dist/syndicate-html2.min.js.map \
+    $M/@syndicate-lang/ws-relay/dist/syndicate-ws-relay.min.js.map \
+    $M/@syndicate-lang/compiler/dist/syndicate-compiler.min.js.map \
+    .
diff --git a/packages/html2/src/index.ts b/packages/html2/src/index.ts
index 5da51f1..4f5bfae 100644
--- a/packages/html2/src/index.ts
+++ b/packages/html2/src/index.ts
@@ -201,7 +201,6 @@ function spawnLocationHashTracker(ds: Ref) {
     spawn named 'LocationHashTracker' {
         at ds {
             field hashValue: string = '/';
-            assert LocationHash(hashValue.value);
 
             const loadHash = () => {
                 var h = window.location.hash;
@@ -213,10 +212,12 @@ function spawnLocationHashTracker(ds: Ref) {
             const facet = Turn.activeFacet;
             const handlerClosure = () => facet.turn(loadHash);
 
-            loadHash();
             window.addEventListener('hashchange', handlerClosure);
             on stop window.removeEventListener('hashchange', handlerClosure);
 
+            loadHash();
+            assert LocationHash(hashValue.value);
+
             on message LocationHash($newHash: string) => {
                 window.location.hash = newHash;
             }