Check args before asking runtime to resolve fqns to avoid assert (#44635)

diff --git a/src/mono/wasm/runtime/binding_support.js b/src/mono/wasm/runtime/binding_support.js
index ac215b1..c16b6d7 100644 (file)
--- a/src/mono/wasm/runtime/binding_support.js
+++ b/src/mono/wasm/runtime/binding_support.js
@@ -1388,6 +1388,13 @@ var BindingSupportLib = {
                                classname = fqn.substring (idx + 1);
                        }
 
+                       if (!assembly.trim())
+                               throw new Error("No assembly name specified");
+                       if (!classname.trim())
+                               throw new Error("No class name specified");
+                       if (!methodname.trim())
+                               throw new Error("No method name specified");
+
                        var asm = this.assembly_load (assembly);
                        if (!asm)
                                throw new Error ("Could not find assembly: " + assembly);