════════ Exception caught by Flutter framework ═════════════════════════════════
The following assertion was thrown during runApp:
Zone mismatch.
The Flutter bindings were initialized in a different zone than is now being used. This will likely cause confusion and bugs as any zone-specific configuration will inconsistently use the configuration of the original binding initialization zone or this zone based on hard-to-predict factors such as which zone was active when a particular callback was set.
It is important to use the same zone when calling `ensureInitialized` on the binding as when calling `runApp` later.
To make this warning fatal, set BindingBase.debugZoneErrorsAreFatal to true before the bindings are initialized (i.e. as the first statement in `void main() { }`).
When the exception was thrown, this was the stack:
#0 BindingBase.debugCheckZone.<anonymous closure> (package:flutter/src/foundation/binding.dart:519:31)
binding.dart:519
#1 BindingBase.debugCheckZone (package:flutter/src/foundation/binding.dart:525:6)
binding.dart:525
#2 _runWidget (package:flutter/src/widgets/binding.dart:1680:18)
binding.dart:1680
#3 runApp (package:flutter/src/widgets/binding.dart:1616:3)
binding.dart:1616
#4 main.<anonymous closure> (package:mangayomi/main.dart:108:7)
main.dart:108
<asynchronous suspension>
════════════════════════════════════════════════════════════════════════════════
Exception has occurred.
_AssertionError ('package:bot_toast/src/bot_toast_init.dart': Failed assertion: line 9 pos 10: '_key.currentState != null': is not true.)
Problem
- Genz Updates could still return 403/Cloudflare in extension requests even when the same site worked in WebView.
- The extension HTTP path primarily used cached cookies from settings instead of reliably using the current WebView cookie jar.
- Cloudflare challenge detection was too narrow (mostly English markers) and could misclassify localized challenge pages as resolved.
Solution
- Prefer live WebView cookies for outgoing extension HTTP requests, with settings cookies as fallback.
- Sync cookie + user-agent from embedded WebView on onLoadStop in addition to history updates.
- Expand challenge detection with additional multilingual and platform markers.
Implementation Details
- Updated `MCookieManager.interceptRequest` to read cookies from `CookieManager.getCookies()` and use them as the request `Cookie` header when available.
- Added `_syncCookieAndUaFromWebView()` in `MangaWebView` and invoked it from both `onLoadStop` and `onUpdateVisitedHistory` to persist fresh clearance cookies immediately.
- Introduced a centralized `_cloudflareChallengePattern` in `m_client.dart` and reused it in `_containsCloudflareChallengeHtml` and `_isCloudflareChallengePage` for consistent challenge detection.
- prevent stale settings overwrites by reloading settings inside Isar write txn before updating chapterPageUrlsList
- guard getPageLength() against missing chapter entries and empty urls to avoid No element crashes
- simplify read-threshold calculation in setPageIndex() via totalPages/pagesRemaining for continuous and paged modes
- map visible continuous double-page indices to actual page indices in _readProgressListener before persisting progress
- snapshot item positions and clamp indices during fast scrolling to avoid volatile first/last access races
