fix quests loading in shareware

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "diabloweb",
-  "version": "1.0.11",
+  "version": "1.0.13",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "diabloweb",
-  "version": "1.0.11",
+  "version": "1.0.13",
   "private": true,
   "dependencies": {
     "@babel/core": "7.4.3",

src/api/game.worker.js

@@ -191,7 +191,10 @@ function call_api(func, ...params) {
       audioTransfer = null;
     }
   } catch (e) {
-    worker.postMessage({action: "error", error: e.message || (e.constructor && e.constructor.name), stack: e.stack});
+    if (typeof e === "string") {
+      worker.postMessage({action: ""})
+    }
+    worker.postMessage({action: "error", error: e.toString(), stack: e.stack});
   }
 }
 
@@ -274,7 +277,7 @@ worker.addEventListener("message", ({data}) => {
     files = data.files;
     init_game(data.mpq, data.spawn, data.offscreen).then(
       () => worker.postMessage({action: "loaded"}),
-      e => worker.postMessage({action: "failed", error: e.message || e.name || (e.constructor && e.constructor.name), stack: e.stack}));
+      e => worker.postMessage({action: "failed", error: e.toString(), stack: e.stack}));
     break;
   case "event":
     call_api(data.func, ...data.params);

src/api/loader.js

@@ -94,6 +94,7 @@ async function do_load_game(api, audio, mpq) {
           api.openKeyboard(data.open);
           break;
         case "error":
+          audio.stop_all();
           api.onError(data.error, data.stack);
           break;
         case "failed":

src/api/sound.js

@@ -15,11 +15,18 @@ export default function init_sound() {
     return no_sound();
   }
 
-  const context = new AudioContext();
+  let context = null;
+  try {
+    context = new AudioContext();
+  } catch (e) {
+  }
   const sounds = new Map();
 
   return {
     create_sound(id, data, length, channels, rate) {
+      if (!context) {
+        return;
+      }
       const buffer = context.createBuffer(channels, length, rate);
       for (let i = 0; i < channels; ++i) {
         buffer.copyToChannel(data.subarray(i * length, i * length + length), i);
@@ -31,6 +38,9 @@ export default function init_sound() {
       });
     },
     duplicate_sound(id, srcId) {
+      if (!context) {
+        return;
+      }
       const src = sounds.get(srcId);
       if (!src) {
         return;
@@ -77,5 +87,15 @@ export default function init_sound() {
       }
       sounds.delete(id);
     },
+
+    stop_all() {
+      for (let [, sound] of sounds) {
+        if (sound.source) {
+          sound.source.stop();
+        }
+      }
+      sounds.clear();
+      context = null;
+    }
   };
 }