fix

electron/response-headers.ts

@@ -1,13 +1,20 @@
-export function byteStringResponseHeaders(headers: Record<string, string[]> = {}) {
+export function byteStringResponseHeaders(headers: Record<string, string | string[]> = {}) {
   return Object.fromEntries(Object.entries(headers).map(([name, values]) => [
     name,
-    values.map((value) => value.replace(/[^\x00-\xff]+/gu, encodeURIComponent)),
+    (Array.isArray(values) ? values : [values]).map((value) => value.replace(/[^\x00-\xff]+/gu, encodeURIComponent)),
   ]))
 }
 
 export function prepareFetchHeaders(target: Electron.Session) {
   // Electron net.fetch throws outside its promise when a response header contains Unicode.
   target.webRequest.onHeadersReceived((details, callback) => {
-    callback({ responseHeaders: byteStringResponseHeaders(details.responseHeaders) })
+    callback({
+      responseHeaders: byteStringResponseHeaders(details.responseHeaders),
+      statusLine: asciiStatusLine(details.statusLine),
+    })
   })
 }
+
+export function asciiStatusLine(line: string) {
+  return /[^\x20-\x7e]/.test(line) ? line.replace(/^(HTTP\/\S+\s+\d{3}).*$/, '$1 ') : line
+}