diff --git a/http/http.ts b/http/http.ts
index b27f4cf9c54..807b9f2b169 100644
--- a/http/http.ts
+++ b/http/http.ts
@@ -61,9 +61,9 @@ namespace $ {
 		}
 		
 		@ $mol_mem
-		json< Content >( next? : Content , force? : $mol_mem_force ) : Content {
+		json< Content >( next? : Content , force? : $mol_mem_force ) {
 			const next2 = next && JSON.stringify( next , null , '\t' )
-			return this.response( next2 , force ).json()
+			return this.response( next2 , force ).json() as Content
 		}
 		
 	}
diff --git a/image/image.view.tree b/image/image.view.tree
index 005252fcbf3..cd0b4f39f7b 100644
--- a/image/image.view.tree
+++ b/image/image.view.tree
@@ -1,17 +1,17 @@
 $mol_image $mol_view
 	dom_name \img
-	field *
+	field *any
 		^
 		src <= uri \
 		alt <= title
 		loading <= loading \eager
 		decoding <= decoding \async
 		crossOrigin <= cors null
-	attr *
+	attr *any
 		^
 		width <= natural_width? 0
 		height <= natural_height? 0
-	event *
+	event *any
 		load? <=> load? null
 	minimal_width 16
 	minimal_height 16
diff --git a/state/shared/shared.ts b/state/shared/shared.ts
index cf786100e9a..38ca6e4e70b 100644
--- a/state/shared/shared.ts
+++ b/state/shared/shared.ts
@@ -336,7 +336,7 @@ namespace $ {
 		send( key: string, next?: readonly $hyoo_crowd_chunk[] ) {
 			
 			const socket = this.socket()
-			$mol_wire_sync( this ).wait_connection()
+			$mol_wire_sync( this ).wait_connection()/*  */
 			
 			if( socket.readyState !== socket.OPEN ) return
 			
diff --git a/view/tree2/to/dts/dts.ts b/view/tree2/to/dts/dts.ts
index ebce3f2c4d6..56f20a00b82 100644
--- a/view/tree2/to/dts/dts.ts
+++ b/view/tree2/to/dts/dts.ts
@@ -119,7 +119,14 @@ namespace $ {
 					
 					const val = prop.hack({
 						
-						'null': val => val.kids[0]?.value ? [ val.kids[0], val.data( ' | null' ) ]: [ val.data( 'any' ) ],
+						'null': val => {
+							const kid = val.kids[0]
+							const kid_data = kid?.type ? kid.data(kid.type) : undefined
+
+							return kid_data
+								? [ kid_data, val.data( ' | null' ) ]
+								: [ val.data( 'any' ) ]
+						},
 						
 						'true': val => [ val.data( 'boolean' ) ],
 						'false': val => [ val.data( 'boolean' ) ],
diff --git a/view/tree2/to/js/test/ex/simple_typed_null.view.tree b/view/tree2/to/js/test/ex/simple_typed_null.view.tree
index 1cec526eb4d..73682ebae68 100644
--- a/view/tree2/to/js/test/ex/simple_typed_null.view.tree
+++ b/view/tree2/to/js/test/ex/simple_typed_null.view.tree
@@ -1,2 +1,2 @@
 $mol_view_tree2_to_js_test_ex_simple_typed_null_foo $mol_object
-	a null \string|number
+	a null string|number
diff --git a/view/tree2/to/js/test/js.simple.test.ts b/view/tree2/to/js/test/js.simple.test.ts
index 24e7307b70f..95aed5d2d47 100644
--- a/view/tree2/to/js/test/js.simple.test.ts
+++ b/view/tree2/to/js/test/js.simple.test.ts
@@ -12,6 +12,8 @@ namespace $ {
 			const _foo = $mol_view_tree2_to_js_test_ex_simple_mutable_and_read_only_foo
 			
 			const foo = _foo.make({ $ })
+
+			type assert_ro = $mol_type_assert<ReturnType<typeof foo['readonly']>, any>
 			
 			$mol_assert_equal(
 				foo.readonly(),
diff --git a/webdav/webdav.ts b/webdav/webdav.ts
index 8e33a35f1db..c28b09f97fe 100644
--- a/webdav/webdav.ts
+++ b/webdav/webdav.ts
@@ -17,7 +17,7 @@ namespace $ {
 			const data = {} as { [ uri : string ] : Element }
 			
 			for( let response of responses ) {
-				const uri = this.resolve( response.querySelector( 'href' ).textContent ).uri()
+				const uri = this.resolve( response.querySelector( 'href' )?.textContent ?? '' ).uri()
 				
 				data[ uri ] = response
 			}
@@ -86,7 +86,7 @@ namespace $ {
 		}
 		
 		prop( prop: string ) {
-			return this.data_self()[ this.uri() ].querySelector( prop ).textContent
+			return this.data_self()[ this.uri() ]?.querySelector( prop )?.textContent
 		}
 	
 		type() {