diff --git a/libs/http/request.b b/libs/http/request.b
index 62a9a94a..12634c30 100644
--- a/libs/http/request.b
+++ b/libs/http/request.b
@@ -1216,11 +1216,17 @@ class HttpRequest {
     return http_response
   }
 
-  @to_string() {
+  /**
+   * Returns the request as a string.
+   */
+  to_string() {
     return '<HttpRequest method=${self.method}, path=${self.path}>'
   }
 
-  @to_json() {
+  /**
+   * Returns the request as a JSON object.
+   */
+  to_json() {
     return {
       request_uri: self.request_uri,
       path: self.path,
@@ -1230,8 +1236,16 @@ class HttpRequest {
       headers: self.headers,
       queries: self.queries,
       cookies: self.cookies,
-      body: self.body,
+      body: to_string(self.body),
     }
   }
+
+  @to_string() {
+    return self.to_string()
+  }
+
+  @to_json() {
+    return self.to_json()
+  }
 }
 
diff --git a/libs/http/response.b b/libs/http/response.b
index 477a9849..e44a04d7 100644
--- a/libs/http/response.b
+++ b/libs/http/response.b
@@ -229,12 +229,18 @@ class HttpResponse {
     self.headers.set('Content-Type', mimetype)
   }
 
-  @to_string() {
+  /**
+   * Returns the response details in a string
+   */
+  to_string() {
     return '<HttpResponse status: ${self.status}, version: ${self.version}, time_taken:' +
-        ' ${self.time_taken}, redirects: ${self.redirects}, responder: ${self.responder}>'
+      ' ${self.time_taken}, redirects: ${self.redirects}, responder: ${self.responder}>'
   }
 
-  @to_json() {
+  /**
+   * Returns the response as a JSON object
+   */
+  to_json() {
     return {
       status: self.status,
       version: self.version,
@@ -243,7 +249,15 @@ class HttpResponse {
       responder: self.responder,
       headers: self.headers,
       cookies: self.cookies,
-      body: self.body
+      body: self.body,
     }
   }
+
+  @to_string() {
+    return self.to_string()
+  }
+
+  @to_json() {
+    return self.to_json()
+  }
 }
diff --git a/src/memory.c b/src/memory.c
index cd477a19..bd43beaf 100644
--- a/src/memory.c
+++ b/src/memory.c
@@ -400,6 +400,15 @@ void free_objects(b_vm *vm) {
   vm->gray_stack = NULL;
 }
 
+void free_error_stacks(b_vm *vm) {
+  for(int index = vm->error_top - vm->errors; index < ERRORS_MAX && vm->errors[index] != NULL; index++) {
+    if(vm->errors[index]) {
+      free(vm->errors[index]);
+      vm->errors[index] = NULL;
+    }
+  }
+}
+
 void collect_garbage(b_vm *vm) {
 #if defined(DEBUG_GC) && DEBUG_GC
   printf("-- gc begins\n");
@@ -414,6 +423,7 @@ void collect_garbage(b_vm *vm) {
   table_remove_whites(vm, &vm->strings);
   table_remove_whites(vm, &vm->modules);
   sweep(vm);
+  free_error_stacks(vm);
 
   vm->next_gc = vm->bytes_allocated * GC_HEAP_GROWTH_FACTOR;
   vm->mark_value = !vm->mark_value;