Add TextDecoder polyfill

.prettierignore

@@ -9,4 +9,5 @@ packages/backend-core/coverage
 packages/builder/.routify
 packages/sdk/sdk
 packages/pro/coverage
-**/*.ivm.bundle.js
+**/*.ivm.bundle.js
+!**/bson-polyfills.ivm.bundle.js

packages/server/src/jsRunner/bundles/bson-polyfills.ivm.bundle.js

@@ -1,6 +1,21 @@
-function atob(...args){
-    return atobCB(...args)
+function atob(...args) {
+  return atobCB(...args)
 }
-function btoa(...args){
-    return btoaCB(...args)
+function btoa(...args) {
+  return btoaCB(...args)
+}
+
+class TextDecoder {
+  constructorArgs
+
+  constructor(...constructorArgs) {
+    this.constructorArgs = constructorArgs
+  }
+
+  decode(...input) {
+    return textDecoderCb({
+      constructorArgs: this.constructorArgs,
+      functionArgs: input,
+    })
+  }
 }

packages/server/src/jsRunner/vm/isolated-vm.ts

@@ -161,6 +161,8 @@ export class IsolatedVM implements VM {
 
     const bsonSource = loadBundle(BundleType.BSON)
 
+    // "Polyfilling" text decoder and other utils. `bson.deserialize` requires decoding. We are creating a bridge function so we don't need to inject the full library
+    const bsonPolyfills = loadBundle(BundleType.BSON_POLYFILLS)
     this.addToContext({
       textDecoderCb: new ivm.Callback(
         (args: {
@@ -183,9 +185,6 @@ export class IsolatedVM implements VM {
       }),
     })
 
-    // "Polyfilling" text decoder and other utils. `bson.deserialize` requires decoding. We are creating a bridge function so we don't need to inject the full library
-    const bsonPolyfills = loadBundle(BundleType.BSON_POLYFILLS)
-
     const script = this.isolate.compileScriptSync(
       `${bsonPolyfills};${bsonSource}`
     )