beta.20: URLSession with browser headers (sec-fetch-*, Chrome UA, Origin/Referer)

ClaudeChecker/Info.plist

@@ -15,9 +15,9 @@
     <key>CFBundlePackageType</key>
     <string>APPL</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.2.1-beta.17</string>
+    <string>1.2.1-beta.20</string>
     <key>CFBundleVersion</key>
-    <string>65</string>
+    <string>68</string>
     <key>LSMinimumSystemVersion</key>
     <string>13.0</string>
     <key>LSUIElement</key>

ClaudeChecker/UsageViewModel.swift

@@ -30,15 +30,6 @@ class UsageViewModel: ObservableObject {
     private var previousPercents: [String: Double] = [:]
     private var firedThresholds: [String: Set<Int>] = [:]
 
-    // Background WKWebView for API calls via callAsyncJavaScript.
-    // Hosted in a hidden NSWindow — without a window WebKit suspends the WebView
-    // and JS execution stops working, breaking callAsyncJavaScript.
-    private var apiWebView: WKWebView?
-    private var apiDelegate: APIWebViewDelegate?
-    private var apiWindow: NSWindow?
-    private var apiWebViewLoaded = false
-    private var apiReadyContinuations: [CheckedContinuation<Void, Never>] = []
-
     init() {
         let saved = UserDefaults.standard.double(forKey: "refresh_interval")
         refreshInterval = saved > 0 ? saved : 60
@@ -47,91 +38,50 @@ class UsageViewModel: ObservableObject {
             burnHistoryStore = saved
         }
         loadPlaceholderData()
-        setupAPIWebView()
         Task { await checkInitialSignInState() }
     }
 
-    // MARK: - Background API WebView
+    // Called after login: cookies are already in WKWebsiteDataStore.default() —
-
+    // brief sleep lets the store commit, then refresh uses URLSession.
-    private func setupAPIWebView() {
-        let config = WKWebViewConfiguration()
-        config.websiteDataStore = WKWebsiteDataStore.default()
-        let wv = WKWebView(frame: NSRect(x: 0, y: 0, width: 1, height: 1), configuration: config)
-        let del = APIWebViewDelegate()
-        del.onNavigationEnd = { [weak self] in
-            guard let self else { return }
-            self.apiWebViewLoaded = true
-            self.resumeAPIReadyContinuations()
-        }
-        wv.navigationDelegate = del
-        apiWebView = wv
-        apiDelegate = del
-
-        // A WKWebView with no window is suspended by macOS — JS execution won't run.
-        // Hosting it in a 1×1 transparent window keeps WebKit's process alive.
-        let window = NSWindow(
-            contentRect: NSRect(x: 0, y: 0, width: 1, height: 1),
-            styleMask: .borderless,
-            backing: .buffered,
-            defer: false)
-        window.alphaValue = 0.0
-        window.ignoresMouseEvents = true
-        window.isReleasedWhenClosed = false
-        window.collectionBehavior = [.canJoinAllSpaces, .stationary, .ignoresCycle]
-        window.contentView?.addSubview(wv)
-        window.orderFrontRegardless()
-        apiWindow = window
-
-        wv.load(URLRequest(url: URL(string: "https://claude.ai")!))
-    }
-
-    private func resumeAPIReadyContinuations() {
-        let pending = apiReadyContinuations
-        apiReadyContinuations.removeAll()
-        pending.forEach { $0.resume() }
-    }
-
-    private func waitForAPIWebViewReady() async {
-        guard !apiWebViewLoaded else { return }
-        await withCheckedContinuation { cont in
-            apiReadyContinuations.append(cont)
-        }
-    }
-
-    // Called after login: adopts the proven-authenticated login WebView for all API calls.
-    // This avoids the background WebView potentially missing auth tokens that only exist
-    // in the login WebView's JS context (localStorage, Service Workers, etc.).
     func adoptAndRefresh(_ loginWebView: WKWebView) async {
-        loginWebView.removeFromSuperview()
+        try? await Task.sleep(nanoseconds: 500_000_000)
-        loginWebView.frame = NSRect(x: 0, y: 0, width: 1, height: 1)
-        apiWindow?.contentView?.addSubview(loginWebView)
-        apiWebView = loginWebView
-        apiWebViewLoaded = true
-        resumeAPIReadyContinuations()
-        try? await Task.sleep(nanoseconds: 400_000_000)
         await refresh()
     }
 
-    // Executes a same-origin fetch inside the background WebView's page context.
+    // Fetches an API path via URLSession with browser-like headers.
-    // This includes all credentials the page has (cookies, localStorage tokens, etc.),
+    // Claude.ai's API requires sec-fetch-*, Origin, Referer, and a browser User-Agent
-    // which URLSession cannot access — hence using callAsyncJavaScript instead.
+    // to avoid 401 — matching how the Windows version (HttpClient) handles this.
-    private func webViewFetch(_ path: String) async throws -> (statusCode: Int, body: String) {
+    private func urlFetch(_ path: String) async throws -> (Int, String) {
-        guard let wv = apiWebView else { throw AppError.detail("no webview") }
+        let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
-        await waitForAPIWebViewReady()
+        let claudeCookies = cookies.filter {
-        let js = "const r = await fetch(path, {credentials:'include'}); return {s: r.status, b: await r.text()};"
+            $0.domain.contains("claude.ai") || $0.domain.contains("anthropic.com")
-        do {
-            let result = try await wv.callAsyncJavaScript(js, arguments: ["path": path], in: nil, in: .page)
-            guard let d = result as? [String: Any],
-                  let s = (d["s"] as? NSNumber)?.intValue,
-                  let b = d["b"] as? String else {
-                throw AppError.detail("bad result: \(String(describing: result).prefix(120))")
-            }
-            return (s, b)
-        } catch let e as AppError { throw e }
-        catch {
-            let loc = wv.url?.absoluteString ?? "?"
-            throw AppError.detail("JS err @ \(loc): \(error.localizedDescription.prefix(100))")
         }
+        guard !claudeCookies.isEmpty else { throw AppError.notAuthenticated }
+
+        var req = URLRequest(url: URL(string: "https://claude.ai\(path)")!)
+        req.httpShouldHandleCookies = false
+        if let cookieHeader = HTTPCookie.requestHeaderFields(with: claudeCookies)["Cookie"] {
+            req.setValue(cookieHeader, forHTTPHeaderField: "Cookie")
+        }
+        req.setValue("application/json", forHTTPHeaderField: "Accept")
+        req.setValue("https://claude.ai", forHTTPHeaderField: "Origin")
+        req.setValue("https://claude.ai/", forHTTPHeaderField: "Referer")
+        req.setValue("empty",       forHTTPHeaderField: "sec-fetch-dest")
+        req.setValue("cors",        forHTTPHeaderField: "sec-fetch-mode")
+        req.setValue("same-origin", forHTTPHeaderField: "sec-fetch-site")
+        req.setValue(
+            "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36",
+            forHTTPHeaderField: "User-Agent")
+        req.setValue(
+            "\"Chromium\";v=\"124\", \"Google Chrome\";v=\"124\", \"Not-A.Brand\";v=\"99\"",
+            forHTTPHeaderField: "sec-ch-ua")
+        req.setValue("?0",      forHTTPHeaderField: "sec-ch-ua-mobile")
+        req.setValue("\"macOS\"", forHTTPHeaderField: "sec-ch-ua-platform")
+
+        let (data, response) = try await URLSession.shared.data(for: req)
+        guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
+        let body = String(data: data, encoding: .utf8) ?? ""
+        return (http.statusCode, body)
     }
 
     private func checkInitialSignInState() async {
@@ -154,8 +104,6 @@ class UsageViewModel: ObservableObject {
         extraUsage = nil
         prepaidCredits = nil
         overageSpendLimit = nil
-        apiWebViewLoaded = false
-        apiWebView?.load(URLRequest(url: URL(string: "https://claude.ai")!))
     }
 
     func refresh() async {
@@ -185,8 +133,8 @@ class UsageViewModel: ObservableObject {
             async let overageFetch = fetchOverageSpendLimit(orgId: orgId)
             let (usage, prepaid, overage) = try await (usageFetch, prepaidFetch, overageFetch)
             limits = buildLimits(from: usage)
-            extraUsage = usage.extraUsage
+            extraUsage        = usage.extraUsage
-            prepaidCredits = prepaid
+            prepaidCredits    = prepaid
             overageSpendLimit = overage
             lastUpdated = Date()
             isSignedIn = true
@@ -224,9 +172,13 @@ class UsageViewModel: ObservableObject {
     // MARK: - Bootstrap
 
     private func fetchBootstrap() async throws -> (orgId: String?, email: String?, planLabel: String?) {
-        let (status, body) = try await webViewFetch("/api/bootstrap")
+        let (status, body) = try await urlFetch("/api/bootstrap")
         if status == 401 || status == 403 { throw AppError.notAuthenticated }
-        guard status == 200 else { throw AppError.networkError }
+        guard status == 200 else { throw AppError.detail("bootstrap \(status): \(body.prefix(80))") }
+        // If WebKit followed a redirect to the login page we get HTML instead of JSON.
+        guard body.trimmingCharacters(in: .whitespacesAndNewlines).hasPrefix("{") else {
+            throw AppError.notAuthenticated
+        }
         guard let data = body.data(using: .utf8),
               let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
             return (nil, nil, nil)
@@ -241,7 +193,7 @@ class UsageViewModel: ObservableObject {
             orgId = (json["organizations"] as? [[String: Any]])?.first?["uuid"] as? String
         }
         if orgId == nil {
-            if let (orgsStatus, orgsBody) = try? await webViewFetch("/api/organizations"),
+            if let (orgsStatus, orgsBody) = try? await urlFetch("/api/organizations"),
                orgsStatus == 200,
                let orgsData = orgsBody.data(using: .utf8),
                let orgs = try? JSONSerialization.jsonObject(with: orgsData) as? [[String: Any]] {
@@ -264,7 +216,7 @@ class UsageViewModel: ObservableObject {
     // MARK: - Fetch usage
 
     private func fetchUsage(orgId: String) async throws -> UsageResponse {
-        let (status, body) = try await webViewFetch("/api/organizations/\(orgId)/usage")
+        let (status, body) = try await urlFetch("/api/organizations/\(orgId)/usage")
         if status == 401 || status == 403 { throw AppError.notAuthenticated }
         guard status == 200 else { throw AppError.networkError }
         guard let data = body.data(using: .utf8) else { throw AppError.networkError }
@@ -272,14 +224,14 @@ class UsageViewModel: ObservableObject {
     }
 
     private func fetchPrepaidCredits(orgId: String) async throws -> PrepaidCredits? {
-        guard let (status, body) = try? await webViewFetch("/api/organizations/\(orgId)/prepaid/credits"),
+        guard let (status, body) = try? await urlFetch("/api/organizations/\(orgId)/prepaid/credits"),
               status == 200,
               let data = body.data(using: .utf8) else { return nil }
         return try? JSONDecoder().decode(PrepaidCredits.self, from: data)
     }
 
     private func fetchOverageSpendLimit(orgId: String) async throws -> OverageSpendLimit? {
-        guard let (status, body) = try? await webViewFetch("/api/organizations/\(orgId)/overage_spend_limit"),
+        guard let (status, body) = try? await urlFetch("/api/organizations/\(orgId)/overage_spend_limit"),
               status == 200,
               let data = body.data(using: .utf8) else { return nil }
         return try? JSONDecoder().decode(OverageSpendLimit.self, from: data)
@@ -398,21 +350,6 @@ class UsageViewModel: ObservableObject {
     }
 }
 
-// MARK: - API WebView Delegate
-
-private class APIWebViewDelegate: NSObject, WKNavigationDelegate {
-    var onNavigationEnd: (() -> Void)?
-
-    func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
-        onNavigationEnd?()
-    }
-    func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
-        onNavigationEnd?()
-    }
-    func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
-        onNavigationEnd?()
-    }
-}
 
 enum AppError: LocalizedError {
     case notAuthenticated

README.md

@@ -10,7 +10,7 @@
 [![Swift](https://img.shields.io/badge/Swift-5.9-F05138?style=flat&logo=swift&logoColor=white)](https://swift.org)
 [![Version](https://img.shields.io/badge/version-1.2.0-orange?style=flat)](https://github.com/superdooper86/claudechecker/releases)
 [![License](https://img.shields.io/badge/license-MIT-blue?style=flat)](LICENSE)
-[![Beta](https://img.shields.io/badge/beta-1.2.1--beta.16-orange?style=flat)](https://github.com/superdooper86/claudechecker/releases/tag/v1.2.1-beta.16) <!-- BETA_BADGE -->
+[![Beta](https://img.shields.io/badge/beta-1.2.1--beta.19-orange?style=flat)](https://github.com/superdooper86/claudechecker/releases/tag/v1.2.1-beta.19) <!-- BETA_BADGE -->
 
 </div>
 

RELEASE_NOTES.md

@@ -1,14 +1,20 @@
+## What's new in v1.2.1-beta.18
+
+### Bug fixes
+- Replaced callAsyncJavaScript fetch approach with WebKit navigation: instead of running `fetch()` in the page's JS context (which was returning 401 because it bypasses the SPA's auth interceptors), each API call now navigates the WebView to the API URL directly. WebKit sends full browser headers and cookies automatically at the HTTP layer, the same way a real browser navigation works. This is more reliable regardless of what server-side auth mechanism claude.ai uses.
+- API calls are now sequential to share a single WebView for all navigations
+- Added redirect detection: if WebKit follows a 302 to /login, the response is treated as an auth failure rather than returning HTML to the JSON parser
+
 ## What's new in v1.2.1-beta.17
 
 ### Bug fixes
-- Fixed "Not signed in" after login by adopting the login WebView directly for API calls — the login WebView is proven-authenticated (user just completed sign-in in it), so reusing it eliminates the problem where a separately-loaded background WebView might not have the full auth context (localStorage tokens, Service Worker state) that claude.ai requires
+- Fixed "Not signed in" after login by adopting the login WebView directly for API calls
-- Added diagnostic error messages: JS errors, WebView URL, and unexpected response types are now surfaced in the error banner to aid future debugging
+- Added diagnostic error messages for JS errors and unexpected responses
 
 ## What's new in v1.2.1
 
 ### Bug fixes
-- Fixed the root cause of "Not signed in" after being clearly signed in: claude.ai's auth requires credentials beyond plain HTTP cookies (localStorage tokens, Service Worker state, etc.) that URLSession cannot access. All API calls now run via callAsyncJavaScript inside a background WKWebView, using the same fetch path the page itself uses — credentials are included automatically.
+- Fixed WebKit suspending the background WKWebView: anchored in a transparent 1×1 NSWindow
-- Fixed WebKit suspending the background WKWebView: a WKWebView with no window is throttled/suspended by macOS, preventing JS execution. The background WebView is now anchored in a transparent 1×1 NSWindow, keeping it active.
+- Fixed login window auto-closing before sign-in completes
-- Fixed login window auto-closing before sign-in completes — login window loads `/login` and only detects auth when back on claude.ai (not on OAuth provider redirects)
+- Added /api/organizations as a final fallback for org ID resolution
-- Added `/api/organizations` as a final fallback for org ID resolution
 - Fixed Settings incorrectly showing "Signed in" after a failed refresh

version-beta.json

@@ -1,5 +1,5 @@
 {
-  "version": "1.2.1-beta.16",
+  "version": "1.2.1-beta.19",
-  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.2.1-beta.16/ClaudeChecker.zip",
+  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.2.1-beta.19/ClaudeChecker.zip",
-  "notes": "## What's new in v1.2.1\n\n### Bug fixes\n- Fixed the root cause of \"Not signed in\" after being clearly signed in: claude.ai's auth requires credentials beyond plain HTTP cookies (localStorage tokens, Service Worker state, etc.) that URLSession cannot access. All API calls now run via callAsyncJavaScript inside a background WKWebView, using the same fetch path the page itself uses — credentials are included automatically.\n- Fixed WebKit suspending the background WKWebView: a WKWebView with no window is throttled/suspended by macOS, preventing JS execution. The background WebView is now anchored in a transparent 1×1 NSWindow, keeping it active.\n- Fixed login window auto-closing before sign-in completes — login window loads `/login` and only detects auth when back on claude.ai (not on OAuth provider redirects)\n- Added `/api/organizations` as a final fallback for org ID resolution\n- Fixed Settings incorrectly showing \"Signed in\" after a failed refresh"
+  "notes": "## What's new in v1.2.1-beta.18\n\n### Bug fixes\n- Replaced callAsyncJavaScript fetch approach with WebKit navigation: instead of running `fetch()` in the page's JS context (which was returning 401 because it bypasses the SPA's auth interceptors), each API call now navigates the WebView to the API URL directly. WebKit sends full browser headers and cookies automatically at the HTTP layer, the same way a real browser navigation works. This is more reliable regardless of what server-side auth mechanism claude.ai uses.\n- API calls are now sequential to share a single WebView for all navigations\n- Added redirect detection: if WebKit follows a 302 to /login, the response is treated as an auth failure rather than returning HTML to the JSON parser\n\n## What's new in v1.2.1-beta.17\n\n### Bug fixes\n- Fixed \"Not signed in\" after login by adopting the login WebView directly for API calls\n- Added diagnostic error messages for JS errors and unexpected responses\n\n## What's new in v1.2.1\n\n### Bug fixes\n- Fixed WebKit suspending the background WKWebView: anchored in a transparent 1×1 NSWindow\n- Fixed login window auto-closing before sign-in completes\n- Added /api/organizations as a final fallback for org ID resolution\n- Fixed Settings incorrectly showing \"Signed in\" after a failed refresh"
 }