From a844698f153773d5255724ba48a00851418af009 Mon Sep 17 00:00:00 2001
From: toasted-nutbread <toasted-nutbread@users.noreply.github.com>
Date: Sun, 26 Jan 2020 15:45:31 -0500
Subject: [PATCH] Return unconstrained schema when additionalProperties is
 true/undefined

---
 ext/bg/js/json-schema.js | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/ext/bg/js/json-schema.js b/ext/bg/js/json-schema.js
index ab4a4817..7a7f2489 100644
--- a/ext/bg/js/json-schema.js
+++ b/ext/bg/js/json-schema.js
@@ -138,7 +138,13 @@ class JsonSchemaProxyHandler {
                 }
 
                 const additionalProperties = schema.additionalProperties;
-                return JsonSchemaProxyHandler.isObject(additionalProperties) ? additionalProperties : null;
+                if (additionalProperties === false) {
+                    return null;
+                } if (JsonSchemaProxyHandler.isObject(additionalProperties)) {
+                    return additionalProperties;
+                } else {
+                    return JsonSchemaProxyHandler._unconstrainedSchema;
+                }
             }
             case 'array':
             {
@@ -491,6 +497,8 @@ class JsonSchemaProxyHandler {
     }
 }
 
+JsonSchemaProxyHandler._unconstrainedSchema = {};
+
 class JsonSchema {
     static createProxy(target, schema) {
         return new Proxy(target, new JsonSchemaProxyHandler(schema));