Fix trimHeadFrames appearing in outbound payload in some cases

src/raven.js

@@ -1141,8 +1141,6 @@ Raven.prototype = {
                 for (var j = 0; j < options.trimHeadFrames && j < frames.length; j++) {
                     frames[j].in_app = false;
                 }
-                // ... delete to prevent from appearing in outbound payload
-                delete options.trimHeadFrames;
             }
         }
         frames = frames.slice(0, this._globalOptions.stackTraceLimit);
@@ -1263,6 +1261,9 @@ Raven.prototype = {
             baseData.request = httpData;
         }
 
+        // HACK: delete `trimHeadFrames` to prevent from appearing in outbound payload
+        if (data.trimHeadFrames) delete data.trimHeadFrames;
+
         data = objectMerge(baseData, data);
 
         // Merge in the tags and extra separately since objectMerge doesn't handle a deep merge

test/integration/test.js

@@ -79,6 +79,25 @@ describe('integration', function () {
             );
         });
 
+        it('should generate a synthetic trace for captureException w/ non-errors', function (done) {
+            var iframe = this.iframe;
+            iframeExecute(iframe, done,
+                function () {
+                    setTimeout(done);
+
+
+                    Raven.captureException({foo:'bar'});
+                },
+                function () {
+                    var ravenData = iframe.contentWindow.ravenData[0];
+                    assert.isAbove(ravenData.stacktrace.frames.length, 1);
+
+                    // verify trimHeadFrames hasn't slipped into final payload
+                    assert.isUndefined(ravenData.trimHeadFrames);
+                }
+            );
+        });
+
         it('should capture an Error object passed to Raven.captureException w/ maxMessageLength set (#647)', function (done) {
             var iframe = this.iframe;
             iframeExecute(iframe, done,