feature parity with legacy ytproxy

src/main.rs

@@ -112,6 +112,11 @@ fn is_header_allowed(header: &str) -> bool {
     !matches!(
         header,
         "host"
+            | "authorization"
+            | "origin"
+            | "referer"
+            | "cookie"
+            | "etag"
             | "content-length"
             | "set-cookie"
             | "alt-svc"
@@ -506,4 +511,4 @@ async fn index(req: HttpRequest) -> Result<HttpResponse, Box<dyn Error>> {
 
     // Stream response
     Ok(response.streaming(resp.bytes_stream()))
-}
+}

src/utils.rs

@@ -1,7 +1,11 @@
+use once_cell::sync::Lazy;
 use qstring::QString;
 use reqwest::Url;
 use std::borrow::Cow;
 use std::collections::BTreeMap;
+use std::env;
+
+static PREFIX_PATH: Lazy<String> = Lazy::new(|| String::from(env::var("PREFIX_PATH").unwrap_or_else(|_| "".to_string())));
 
 pub fn read_buf(buf: &[u8], pos: &mut usize) -> u8 {
     let byte = buf[*pos];
@@ -46,12 +50,12 @@ fn finalize_url(path: &str, query: BTreeMap<String, String>) -> String {
         if qhash.is_some() {
             let mut query = QString::new(query.into_iter().collect::<Vec<_>>());
             query.add_pair(("qhash", qhash.unwrap()));
-            return format!("{}?{}", path, query);
+            return format!("{}{}?{}", PREFIX_PATH.as_str(), path, query);
         }
     }
 
     let query = QString::new(query.into_iter().collect::<Vec<_>>());
-    format!("{}?{}", path, query)
+    format!("{}{}?{}", PREFIX_PATH.as_str(), path, query)
 }
 
 pub fn localize_url(url: &str, host: &str) -> String {