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

ClaudeChecker/ContentView.swift

@@ -116,8 +116,8 @@ struct ContentView: View {
             showUpdateSheet = true
         }
         .sheet(isPresented: $showLogin) {
-            LoginSheetView(isPresented: $showLogin) {
-                Task { await vm.refresh() }
+            LoginSheetView(isPresented: $showLogin) { webView in
+                Task { await vm.adoptAndRefresh(webView) }
             }
         }
         .sheet(isPresented: $showUpdateSheet) {

ClaudeChecker/Info.plist

@@ -15,9 +15,9 @@
     <key>CFBundlePackageType</key>
     <string>APPL</string>
     <key>CFBundleShortVersionString</key>
-    <string>1.2.1-beta.14</string>
+    <string>1.2.1-beta.20</string>
     <key>CFBundleVersion</key>
-    <string>62</string>
+    <string>68</string>
     <key>LSMinimumSystemVersion</key>
     <string>13.0</string>
     <key>LSUIElement</key>

ClaudeChecker/LoginView.swift

@@ -4,7 +4,7 @@ import WebKit
 // MARK: - Login Web View
 
 struct LoginWebView: NSViewRepresentable {
-    let onAuthenticated: () -> Void
+    let onAuthenticated: (WKWebView) -> Void
 
     func makeNSView(context: Context) -> WKWebView {
         let config = WKWebViewConfiguration()
@@ -12,6 +12,7 @@ struct LoginWebView: NSViewRepresentable {
 
         let webView = WKWebView(frame: .zero, configuration: config)
         webView.navigationDelegate = context.coordinator
+        context.coordinator.webView = webView
 
         // KVO on url catches SPA pushState navigations that don't fire didFinish
         context.coordinator.urlObservation = webView.observe(\.url, options: [.new]) { [weak coordinator = context.coordinator] wv, _ in
@@ -29,20 +30,24 @@ struct LoginWebView: NSViewRepresentable {
     }
 
     class Coordinator: NSObject, WKNavigationDelegate {
-        let onAuthenticated: () -> Void
+        let onAuthenticated: (WKWebView) -> Void
+        weak var webView: WKWebView?
         var didAuthenticate = false
         var urlObservation: NSKeyValueObservation?
 
-        init(onAuthenticated: @escaping () -> Void) {
+        init(onAuthenticated: @escaping (WKWebView) -> Void) {
             self.onAuthenticated = onAuthenticated
         }
 
         func checkCurrentURL(_ url: String?) {
-            guard !didAuthenticate, let url else { return }
+            guard !didAuthenticate, let url, let wv = webView else { return }
+            // Ignore navigations to external OAuth providers (Google, etc.) —
+            // only consider auth complete when we land back on claude.ai/anthropic.com
+            guard url.contains("claude.ai") || url.contains("anthropic.com") else { return }
             if url.contains("/login") || url.contains("/auth") { return }
             didAuthenticate = true
             DispatchQueue.main.asyncAfter(deadline: .now() + 0.5) {
-                self.onAuthenticated()
+                self.onAuthenticated(wv)
             }
         }
 
@@ -57,7 +62,7 @@ struct LoginWebView: NSViewRepresentable {
 
 struct LoginSheetView: View {
     @Binding var isPresented: Bool
-    let onDone: () -> Void
+    let onDone: (WKWebView) -> Void
     @State private var authenticated = false
 
     var body: some View {
@@ -67,12 +72,9 @@ struct LoginSheetView: View {
                     .font(.system(size: 13, weight: .semibold))
                 Spacer()
                 if authenticated {
-                    Button("Done") {
-                        isPresented = false
-                        onDone()
-                    }
-                    .buttonStyle(.borderedProminent)
-                    .controlSize(.small)
+                    Button("Done") { isPresented = false }
+                        .buttonStyle(.borderedProminent)
+                        .controlSize(.small)
                 } else {
                     Button("Cancel") { isPresented = false }
                         .buttonStyle(.bordered)
@@ -85,12 +87,13 @@ struct LoginSheetView: View {
 
             Divider()
 
-            LoginWebView {
+            LoginWebView { webView in
                 authenticated = true
-                // Auto-dismiss and refresh after brief delay
-                DispatchQueue.main.asyncAfter(deadline: .now() + 0.8) {
+                // Adopt the authenticated WebView immediately (before sheet tears it down),
+                // then auto-dismiss after a moment so the user sees confirmation.
+                onDone(webView)
+                DispatchQueue.main.asyncAfter(deadline: .now() + 1.2) {
                     isPresented = false
-                    onDone()
                 }
             }
         }

ClaudeChecker/UsageViewModel.swift

@@ -41,6 +41,49 @@ class UsageViewModel: ObservableObject {
         Task { await checkInitialSignInState() }
     }
 
+    // Called after login: cookies are already in WKWebsiteDataStore.default() —
+    // brief sleep lets the store commit, then refresh uses URLSession.
+    func adoptAndRefresh(_ loginWebView: WKWebView) async {
+        try? await Task.sleep(nanoseconds: 500_000_000)
+        await refresh()
+    }
+
+    // Fetches an API path via URLSession with browser-like headers.
+    // Claude.ai's API requires sec-fetch-*, Origin, Referer, and a browser User-Agent
+    // to avoid 401 — matching how the Windows version (HttpClient) handles this.
+    private func urlFetch(_ path: String) async throws -> (Int, String) {
+        let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
+        let claudeCookies = cookies.filter {
+            $0.domain.contains("claude.ai") || $0.domain.contains("anthropic.com")
+        }
+        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 {
         let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
         if !cookies.isEmpty { isSignedIn = true }
@@ -90,8 +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
-            prepaidCredits = prepaid
+            extraUsage        = usage.extraUsage
+            prepaidCredits    = prepaid
             overageSpendLimit = overage
             lastUpdated = Date()
             isSignedIn = true
@@ -126,44 +169,18 @@ class UsageViewModel: ObservableObject {
         }
     }
 
-    // MARK: - HTTP helpers
-
-    // Builds a URLRequest with browser-like headers and cookies from WKWebsiteDataStore.
-    //
-    // httpShouldHandleCookies MUST be false: when true, URLSession replaces any manually-set
-    // Cookie header with its own HTTPCookieStorage (which is empty — claude.ai cookies live in
-    // WKWebsiteDataStore, not HTTPCookieStorage), causing every request to go out with no cookies.
-    private func claudeAPIRequest(for url: URL) async -> URLRequest {
-        var req = URLRequest(url: url)
-        req.httpShouldHandleCookies = false
-        req.setValue("application/json", forHTTPHeaderField: "accept")
-        req.setValue("https://claude.ai", forHTTPHeaderField: "origin")
-        req.setValue("https://claude.ai/", forHTTPHeaderField: "referer")
-        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")
-        if let cookie = await claudeCookieHeader() {
-            req.setValue(cookie, forHTTPHeaderField: "cookie")
-        }
-        return req
-    }
-
-    private func claudeCookieHeader() async -> String? {
-        let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
-        guard !cookies.isEmpty else { return nil }
-        return HTTPCookie.requestHeaderFields(with: cookies)["Cookie"]
-    }
-
-    // MARK: - Bootstrap (org ID + email + plan label in one call)
+    // MARK: - Bootstrap
 
     private func fetchBootstrap() async throws -> (orgId: String?, email: String?, planLabel: String?) {
-        let url = URL(string: "https://claude.ai/api/bootstrap")!
-        let req = await claudeAPIRequest(for: url)
-        let (data, response) = try await URLSession.shared.data(for: req)
-        guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
-        if http.statusCode == 401 || http.statusCode == 403 { throw AppError.notAuthenticated }
-        guard http.statusCode == 200 else { throw AppError.networkError }
-        guard let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
+        let (status, body) = try await urlFetch("/api/bootstrap")
+        if status == 401 || status == 403 { throw AppError.notAuthenticated }
+        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)
         }
 
@@ -176,9 +193,9 @@ class UsageViewModel: ObservableObject {
             orgId = (json["organizations"] as? [[String: Any]])?.first?["uuid"] as? String
         }
         if orgId == nil {
-            let orgsReq = await claudeAPIRequest(for: URL(string: "https://claude.ai/api/organizations")!)
-            if let (orgsData, orgsResp) = try? await URLSession.shared.data(for: orgsReq),
-               let orgsHttp = orgsResp as? HTTPURLResponse, orgsHttp.statusCode == 200,
+            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]] {
                 orgId = orgs.first?["uuid"] as? String
             }
@@ -199,28 +216,24 @@ class UsageViewModel: ObservableObject {
     // MARK: - Fetch usage
 
     private func fetchUsage(orgId: String) async throws -> UsageResponse {
-        let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/usage")!
-        let req = await claudeAPIRequest(for: url)
-        let (data, response) = try await URLSession.shared.data(for: req)
-        guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
-        if http.statusCode == 401 || http.statusCode == 403 { throw AppError.notAuthenticated }
-        guard http.statusCode == 200 else { throw AppError.networkError }
+        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 }
         return try JSONDecoder().decode(UsageResponse.self, from: data)
     }
 
     private func fetchPrepaidCredits(orgId: String) async throws -> PrepaidCredits? {
-        let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/prepaid/credits")!
-        let req = await claudeAPIRequest(for: url)
-        let (data, response) = try await URLSession.shared.data(for: req)
-        guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { return nil }
+        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? {
-        let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/overage_spend_limit")!
-        let req = await claudeAPIRequest(for: url)
-        let (data, response) = try await URLSession.shared.data(for: req)
-        guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { return nil }
+        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)
     }
 
@@ -337,13 +350,16 @@ class UsageViewModel: ObservableObject {
     }
 }
 
+
 enum AppError: LocalizedError {
     case notAuthenticated
     case networkError
+    case detail(String)
     var errorDescription: String? {
         switch self {
-        case .notAuthenticated: return "Not signed into claude.ai — open claude.ai in your browser first."
-        case .networkError:     return "Network error fetching usage data."
+        case .notAuthenticated:   return "Not signed into claude.ai — open claude.ai in your browser first."
+        case .networkError:       return "Network error fetching usage data."
+        case .detail(let msg):    return msg
         }
     }
 }

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.13-orange?style=flat)](https://github.com/superdooper86/claudechecker/releases/tag/v1.2.1-beta.13) <!-- 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

@@ -1,10 +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
+- 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" errors: URLSession was silently discarding the manually-set Cookie header because `httpShouldHandleCookies` defaults to `true`, which makes URLSession replace it with its own (empty) HTTPCookieStorage — claude.ai session cookies live in WKWebsiteDataStore, not HTTPCookieStorage. Setting `httpShouldHandleCookies = false` ensures the cookies are actually sent.
-- Added browser-like request headers (User-Agent, Origin, Referer) matching what Claude's API expects, consistent with the working Windows implementation
-- Removed background WKWebView complexity added in beta.12–13 — reverted to simple URLSession approach with correct cookie handling
-- Fixed login window auto-closing before the user could sign in — login window loads `/login` so auth is only detected after the actual sign-in redirect
-- Fixed login detection for Next.js SPA navigation using KVO on WebView URL (history.pushState doesn't trigger didFinish)
-- Added `/api/organizations` as a final fallback for org ID resolution
+- Fixed WebKit suspending the background WKWebView: anchored in a transparent 1×1 NSWindow
+- Fixed login window auto-closing before sign-in completes
+- 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.13",
-  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.2.1-beta.13/ClaudeChecker.zip",
-  "notes": "## What's new in v1.2.1\n\n### Bug fixes\n- Fixed a timing race in the background API WebView — `refresh()` now correctly waits for the WebView to finish loading before making API calls, preventing silent failures on startup\n- Fixed usage data not loading after sign-in — API calls now run inside a persistent background WebView using the page's own fetch(), so all credentials (cookies, httpOnly tokens, etc.) are included automatically\n- Fixed \"Not signed in\" showing after login — the background WebView is now reloaded after sign-in to pick up the new session before the first data refresh\n- Fixed \"Not signed in\" showing incorrectly on launch when the session was already active\n- Sign-in state is now detected immediately from stored cookies on startup, before the first data refresh completes\n- Fixed login window auto-closing before the user could sign in — the login window now correctly loads the `/login` page so it only detects auth after the actual sign-in redirect\n- Fixed \"No API key configured\" showing after signing out — now correctly shows \"Not signed in\" with a prompt to sign in\n- Added `/api/organizations` as a final fallback for org ID resolution when the bootstrap API response doesn't include it\n- Fixed Settings incorrectly showing \"Signed in\" after a failed refresh — sign-in state now resets when authentication fails\n- Rewrote login detection to use KVO on the WebView URL — correctly detects auth for Next.js SPA navigation (history.pushState) that doesn't trigger didFinish"
+  "version": "1.2.1-beta.19",
+  "url": "https://github.com/superdooper86/claudechecker/releases/download/v1.2.1-beta.19/ClaudeChecker.zip",
+  "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"
 }