Add comment support to dynamic prompts nodes

web/extensions/core/dynamicPrompts.js

@@ -3,6 +3,13 @@ import { app } from "../../scripts/app.js";
 // Allows for simple dynamic prompt replacement
 // Inputs in the format {a|b} will have a random value of a or b chosen when the prompt is queued.
 
+/*
+ * Strips C-style line and block comments from a string
+ */
+function stripComments(str) {
+	return str.replace(/\/\*[\s\S]*?\*\/|\/\/.*/g,'');
+}
+
 app.registerExtension({
 	name: "Comfy.DynamicPrompts",
 	nodeCreated(node) {
@@ -15,7 +22,7 @@ app.registerExtension({
 			for (const widget of widgets) {
 				// Override the serialization of the value to resolve dynamic prompts for all widgets supporting it in this node
 				widget.serializeValue = (workflowNode, widgetIndex) => {
-					let prompt = widget.value;
+					let prompt = stripComments(widget.value);
 					while (prompt.replace("\\{", "").includes("{") && prompt.replace("\\}", "").includes("}")) {
 						const startIndex = prompt.replace("\\{", "00").indexOf("{");
 						const endIndex = prompt.replace("\\}", "00").indexOf("}");