fixed paste error

processors/superstockamx.processor.js

@@ -14,7 +14,7 @@ module.exports = {
                 console.log('Found base64 image.')
                 
                 const regex = /^data:(?<contentType>[^;]+);base64,(?<data>.+)/g;
-                const matches = data.matchAll(regex);
+                const matches = src.matchAll(regex);
                 const groups = Array.from(matches, m => m.groups)[0]