1 files changed, 11 insertions, 4 deletions
diff --git a/src/json.c b/src/json.c
index 217c1070c..0ce68f1fc 100644
--- a/src/json.c
+++ b/src/json.c
@@ -733,10 +733,12 @@ static void jsonReturnJson(
     sqlite3_result_error_nomem(pCtx);
     return;
   }
-  jsonInit(&s, pCtx);
-  jsonRenderNode(pParse, pNode, &s);
-  jsonResult(&s);
-  sqlite3_result_subtype(pCtx, JSON_SUBTYPE);
+  if( pParse->nErr==0 ){
+    jsonInit(&s, pCtx);
+    jsonRenderNode(pParse, pNode, &s);
+    jsonResult(&s);
+    sqlite3_result_subtype(pCtx, JSON_SUBTYPE);
+  }
 }
 
 /*
@@ -2705,6 +2707,11 @@ static void jsonReplaceNode(
       }
       break;
     }
+    case SQLITE_BLOB: {
+      sqlite3_result_error(pCtx, "JSON cannot hold BLOB values", -1);
+      p->nErr++;
+      break;
+    }
   }
 }