diff --git a/CHANGELOG.md b/CHANGELOG.md
index ac28141c..439e04c3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 ## Changelog
 
+- 2.11.5
+  - fixed sourcemap file JSON error (#97)
+
 - 2.11.4
   - fixed encoded source url issue
   - fixed filter for encoded url
diff --git a/lib/converter/collect-source-maps.js b/lib/converter/collect-source-maps.js
index b9ce1a44..28a8eef2 100644
--- a/lib/converter/collect-source-maps.js
+++ b/lib/converter/collect-source-maps.js
@@ -17,7 +17,7 @@ const loadSourceMap = async (url = '') => {
             Util.logDebug(EC.red(`failed to load sourcemap ${p}`));
             return;
         }
-        return JSON.parse(content);
+        return Util.jsonParse(content);
     }
 
     const [err, res] = await Util.request(url);
@@ -31,7 +31,7 @@ const loadSourceMap = async (url = '') => {
 
     // could be string not json, if Content-Type is application/octet-stream
     if (typeof content === 'string') {
-        return JSON.parse(content);
+        return Util.jsonParse(content);
     }
 
     return content;
diff --git a/lib/platform/share.js b/lib/platform/share.js
index a0e17611..ef5fb6e4 100644
--- a/lib/platform/share.js
+++ b/lib/platform/share.js
@@ -402,6 +402,30 @@ const Util = {
         return string.charAt(0).toUpperCase() + string.slice(1);
     },
 
+    jsonParse: function(str) {
+
+        if (typeof str !== 'string') {
+            return null;
+        }
+
+        if (!str) {
+            return null;
+        }
+
+        let json = null;
+
+        // remove BOM \ufeff
+        // str = str.replace(/^\uFEFF/, '');
+
+        try {
+            json = JSON.parse(str);
+        } catch (e) {
+            // console.log(e);
+        }
+
+        return json;
+    },
+
     // =============================================================================
     // formatter