1 files changed, 2 insertions, 4 deletions
diff --git a/src/client/views/nodes/KeyValueBox.tsx b/src/client/views/nodes/KeyValueBox.tsx
index 57018fb93..e317de11e 100644
--- a/src/client/views/nodes/KeyValueBox.tsx
+++ b/src/client/views/nodes/KeyValueBox.tsx
@@ -20,14 +20,12 @@ import { ImageBox } from './ImageBox';
 import './KeyValueBox.scss';
 import { KeyValuePair } from './KeyValuePair';
 import React = require('react');
-import e = require('express');
 
 export type KVPScript = {
     script: CompiledScript;
     type: 'computed' | 'script' | false;
     onDelegate: boolean;
 };
-
 @observer
 export class KeyValueBox extends React.Component<FieldViewProps> {
     public static LayoutString() {
@@ -75,7 +73,7 @@ export class KeyValueBox extends React.Component<FieldViewProps> {
         value = eq ? value.substring(1) : value;
         const dubEq = value.startsWith(':=') ? 'computed' : value.startsWith('$=') ? 'script' : false;
         value = dubEq ? value.substring(2) : value;
-        const options: ScriptOptions = { addReturn: true, typecheck: false, params: { this: Doc.name, self: Doc.name, _last_: 'any', _readOnly_: 'boolean' }, editable: false };
+        const options: ScriptOptions = { addReturn: true, typecheck: false, params: { this: Doc.name, self: Doc.name, _last_: 'any', _readOnly_: 'boolean' }, editable: true };
         if (dubEq) options.typecheck = false;
         const script = CompileScript(value, options);
         return !script.compiled ? undefined : { script, type: dubEq, onDelegate: eq };
@@ -98,7 +96,7 @@ export class KeyValueBox extends React.Component<FieldViewProps> {
             }
             field = res.result;
         }
-        if (Field.IsField(field, true)) {
+        if (Field.IsField(field, true) && (key !== 'proto' || field !== target)) {
             target[key] = field;
             return true;
         }