diff --git a/config/current.ver b/config/current.ver
index ca9ab89..34b491f 100644
--- a/config/current.ver
+++ b/config/current.ver
@@ -1 +1 @@
-1.2.70
\ No newline at end of file
+1.2.71
\ No newline at end of file
diff --git a/public/assets/js/bridge/table-builder.js b/public/assets/js/bridge/table-builder.js
index 1c08afb..ddee1e2 100644
--- a/public/assets/js/bridge/table-builder.js
+++ b/public/assets/js/bridge/table-builder.js
@@ -146,12 +146,18 @@
                 model: BaseModel.extend({
                     initialize(props = {}, opts = {}) {
                         // Guard before base init: grapes expects classes to be iterable in getAttributes
+                        if (props && props.classes && typeof props.classes.forEach !== 'function') {
+                            props.classes = [];
+                        }
                         if (!this.classes || typeof this.classes.forEach !== 'function') {
                             this.classes = [];
                         }
                         if (BaseModel.prototype.initialize) {
                             BaseModel.prototype.initialize.apply(this, [props, opts]);
                         }
+                        if (!this.classes || typeof this.classes.forEach !== 'function') {
+                            this.classes = [];
+                        }
                         const attrs = this.getAttributes ? this.getAttributes() : {};
                         const nextAttrs = Object.assign({
                             'data-bridge-table': '1',