diff --git a/src/core/evaluator.js b/src/core/evaluator.js
index 2fa42d7b6..df4fa0953 100644
--- a/src/core/evaluator.js
+++ b/src/core/evaluator.js
@@ -1005,9 +1005,20 @@ var PartialEvaluator = (function PartialEvaluatorClosure() {
               // but doing so is meaningless without knowing the semantics.
               continue;
             default:
-              // Note: Let's hope that the ignored operator does not have any
-              // non-serializable arguments, otherwise postMessage will throw
+              // Note: Ignore the operator if it has `Dict` arguments, since
+              // those are non-serializable, otherwise postMessage will throw
               // "An object could not be cloned.".
+              if (args !== null) {
+                for (i = 0, ii = args.length; i < ii; i++) {
+                  if (args[i] instanceof Dict) {
+                    break;
+                  }
+                }
+                if (i < ii) {
+                  warn('getOperatorList - ignoring operator: ' + fn);
+                  continue;
+                }
+              }
           }
           operatorList.addOp(fn, args);
         }
@@ -2555,7 +2566,7 @@ var EvaluatorPreprocessor = (function EvaluatorPreprocessorClosure() {
             if (!args) {
               args = [];
             }
-            args.push((obj instanceof Dict ? obj.getAll() : obj));
+            args.push(obj);
             assert(args.length <= 33, 'Too many arguments');
           }
         }
diff --git a/src/core/primitives.js b/src/core/primitives.js
index 410a38470..730bacb1f 100644
--- a/src/core/primitives.js
+++ b/src/core/primitives.js
@@ -67,24 +67,6 @@ var Dict = (function DictClosure() {
     return nonSerializable; // creating closure on some variable
   };
 
-  var GETALL_DICTIONARY_TYPES_WHITELIST = {
-    'Background': true,
-    'ExtGState': true,
-    'Halftone': true,
-    'Layout': true,
-    'Mask': true,
-    'Pagination': true,
-    'Printing': true
-  };
-
-  function isRecursionAllowedFor(dict) {
-    if (!isName(dict.Type)) {
-      return true;
-    }
-    var dictType = dict.Type.name;
-    return GETALL_DICTIONARY_TYPES_WHITELIST[dictType] === true;
-  }
-
   // xref is optional
   function Dict(xref) {
     // Map should only be used internally, use functions below to access.
@@ -162,58 +144,6 @@ var Dict = (function DictClosure() {
       return this.map[key];
     },
 
-    // creates new map and dereferences all Refs
-    getAll: function Dict_getAll() {
-      var all = Object.create(null);
-      var queue = null;
-      var key, obj;
-      for (key in this.map) {
-        obj = this.get(key);
-        if (obj instanceof Dict) {
-          if (isRecursionAllowedFor(obj)) {
-            (queue || (queue = [])).push({target: all, key: key, obj: obj});
-          } else {
-            all[key] = this.getRaw(key);
-          }
-        } else {
-          all[key] = obj;
-        }
-      }
-      if (!queue) {
-        return all;
-      }
-
-      // trying to take cyclic references into the account
-      var processed = Object.create(null);
-      while (queue.length > 0) {
-        var item = queue.shift();
-        var itemObj = item.obj;
-        var objId = itemObj.objId;
-        if (objId && objId in processed) {
-          item.target[item.key] = processed[objId];
-          continue;
-        }
-        var dereferenced = Object.create(null);
-        for (key in itemObj.map) {
-          obj = itemObj.get(key);
-          if (obj instanceof Dict) {
-            if (isRecursionAllowedFor(obj)) {
-              queue.push({target: dereferenced, key: key, obj: obj});
-            } else {
-              dereferenced[key] = itemObj.getRaw(key);
-            }
-          } else {
-            dereferenced[key] = obj;
-          }
-        }
-        if (objId) {
-          processed[objId] = dereferenced;
-        }
-        item.target[item.key] = dereferenced;
-      }
-      return all;
-    },
-
     getKeys: function Dict_getKeys() {
       return Object.keys(this.map);
     },
diff --git a/test/pdfs/issue6549.pdf.link b/test/pdfs/issue6549.pdf.link
new file mode 100644
index 000000000..9da866501
--- /dev/null
+++ b/test/pdfs/issue6549.pdf.link
@@ -0,0 +1 @@
+http://web.archive.org/web/20150306062422/http://www.kokuyo-st.co.jp/stationery/camiapp/CamiApp_Sample.pdf
diff --git a/test/test_manifest.json b/test/test_manifest.json
index e796620dc..589f96ba0 100644
--- a/test/test_manifest.json
+++ b/test/test_manifest.json
@@ -781,6 +781,15 @@
        "rounds": 1,
        "type": "load"
     },
+    {  "id": "issue6549",
+       "file": "pdfs/issue6549.pdf",
+       "md5": "699aeea73a6f45375022ffc6cc80f12a",
+       "link": true,
+       "rounds": 1,
+       "firstPage": 2,
+       "lastPage": 3,
+       "type": "load"
+    },
     {  "id": "ibwa-bad",
        "file": "pdfs/ibwa-bad.pdf",
        "md5": "6ca059d32b74ac2688ae06f727fee755",