diff --git a/src/browser/HttpClient.zig b/src/browser/HttpClient.zig
index 98a2c2eb..fe73c55e 100644
--- a/src/browser/HttpClient.zig
+++ b/src/browser/HttpClient.zig
@@ -1562,8 +1562,6 @@ pub const Transfer = struct {
                 rh.contentType(),
                 if (conn.getResponseHeader("cache-control", 0)) |h| h.value else null,
                 vary,
-                if (conn.getResponseHeader("etag", 0)) |h| h.value else null,
-                if (conn.getResponseHeader("last-modified", 0)) |h| h.value else null,
                 if (conn.getResponseHeader("age", 0)) |h| h.value else null,
                 conn.getResponseHeader("set-cookie", 0) != null,
                 conn.getResponseHeader("authorization", 0) != null,
diff --git a/src/network/cache/Cache.zig b/src/network/cache/Cache.zig
index fd20e967..c941164f 100644
--- a/src/network/cache/Cache.zig
+++ b/src/network/cache/Cache.zig
@@ -48,8 +48,6 @@ pub fn put(self: *Cache, metadata: CachedMetadata, body: []const u8) !void {
 
 pub const CacheControl = struct {
     max_age: u64,
-    must_revalidate: bool = false,
-    immutable: bool = false,
 
     pub fn parse(value: []const u8) ?CacheControl {
         var cc: CacheControl = .{ .max_age = undefined };
@@ -65,10 +63,6 @@ pub const CacheControl = struct {
                 return null;
             } else if (std.ascii.eqlIgnoreCase(directive, "no-cache")) {
                 return null;
-            } else if (std.ascii.eqlIgnoreCase(directive, "must-revalidate")) {
-                cc.must_revalidate = true;
-            } else if (std.ascii.eqlIgnoreCase(directive, "immutable")) {
-                cc.immutable = true;
             } else if (std.ascii.eqlIgnoreCase(directive, "public")) {
                 is_public = true;
             } else if (std.ascii.startsWithIgnoreCase(directive, "max-age=")) {
@@ -103,11 +97,6 @@ pub const CachedMetadata = struct {
     stored_at: i64,
     age_at_store: u64,
 
-    // for If-None-Match
-    etag: ?[]const u8,
-    // for If-Modified-Since
-    last_modified: ?[]const u8,
-
     cache_control: CacheControl,
     /// Response Headers
     headers: []const Http.Header,
@@ -144,8 +133,6 @@ pub fn tryCache(
     content_type: ?[]const u8,
     cache_control: ?[]const u8,
     vary: ?[]const u8,
-    etag: ?[]const u8,
-    last_modified: ?[]const u8,
     age: ?[]const u8,
     has_set_cookie: bool,
     has_authorization: bool,
@@ -163,8 +150,6 @@ pub fn tryCache(
         .stored_at = timestamp,
         .age_at_store = if (age) |a| std.fmt.parseInt(u64, a, 10) catch 0 else 0,
         .cache_control = cc,
-        .etag = if (etag) |e| try arena.dupe(u8, e) else null,
-        .last_modified = if (last_modified) |lm| try arena.dupe(u8, lm) else null,
         .headers = &.{},
         .vary_headers = &.{},
     };
diff --git a/src/network/cache/FsCache.zig b/src/network/cache/FsCache.zig
index fef6a4b4..685e5ba1 100644
--- a/src/network/cache/FsCache.zig
+++ b/src/network/cache/FsCache.zig
@@ -263,8 +263,6 @@ test "FsCache: basic put and get" {
         .status = 200,
         .stored_at = now,
         .age_at_store = 0,
-        .etag = null,
-        .last_modified = null,
         .cache_control = .{ .max_age = 600 },
         .headers = &.{},
         .vary_headers = &.{},
@@ -315,8 +313,6 @@ test "FsCache: get expiration" {
         .status = 200,
         .stored_at = now,
         .age_at_store = 900,
-        .etag = null,
-        .last_modified = null,
         .cache_control = .{ .max_age = max_age },
         .headers = &.{},
         .vary_headers = &.{},
@@ -376,8 +372,6 @@ test "FsCache: put override" {
             .status = 200,
             .stored_at = now,
             .age_at_store = 900,
-            .etag = null,
-            .last_modified = null,
             .cache_control = .{ .max_age = max_age },
             .headers = &.{},
             .vary_headers = &.{},
@@ -418,8 +412,6 @@ test "FsCache: put override" {
             .status = 200,
             .stored_at = now,
             .age_at_store = 0,
-            .etag = null,
-            .last_modified = null,
             .cache_control = .{ .max_age = max_age },
             .headers = &.{},
             .vary_headers = &.{},
@@ -496,8 +488,6 @@ test "FsCache: vary hit and miss" {
         .status = 200,
         .stored_at = now,
         .age_at_store = 0,
-        .etag = null,
-        .last_modified = null,
         .cache_control = .{ .max_age = 600 },
         .headers = &.{},
         .vary_headers = &.{
@@ -559,8 +549,6 @@ test "FsCache: vary multiple headers" {
         .status = 200,
         .stored_at = now,
         .age_at_store = 0,
-        .etag = null,
-        .last_modified = null,
         .cache_control = .{ .max_age = 600 },
         .headers = &.{},
         .vary_headers = &.{