I’m encountering an issue with CSS not displaying when using WKURLSchemeHandler to load local HTML files. • When I package the app using Xcode 15.3 or above, the CSS styles do not display on iOS 17 or higher. However, on iOS 16.7.1, the CSS displays correctly. • If I use Xcode 15.2 to package the app, the CSS loads and displays correctly on all iOS versions. I am using WKURLSchemeHandler to intercept and load the local HTML files. Is there any known issue or workaround for this? You can now post this in the “Safari & Web” section of the Apple Developer forums for further assistance! // // CustomURLSchemeHandler.m // HTMLTest // // Created by lvxue on 2024/9/23. // // CustomURLSchemeHandler.m #import "CustomURLSchemeHandler.h" @implementation CustomURLSchemeHandler // 拦截请求并提供本地 HTML 文件 - (void)webView:(WKWebView *)webView startURLSchemeTask:(id<WKURLSchemeTask>)urlSchemeTask { NSURL *url = urlSchemeTask.request.URL; //NSString *filePath; // 获取本地 HTML 文件路径 NSString *filePath = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html" inDirectory:@"LoaclHtml.bundle/A4"]; // 判断请求的是 HTML、CSS 或其他文件 if ([url.lastPathComponent hasSuffix:@".css"]) { filePath = [[NSBundle mainBundle] pathForResource:@"style" ofType:@"css" inDirectory:@"LoaclHtml.bundle/A4/css"]; } else if ([url.lastPathComponent hasSuffix:@".js"]) { filePath = [[NSBundle mainBundle] pathForResource:@"yourJSFileName" ofType:@"js" inDirectory:@"LoaclHtml.bundle/A4/js"]; } // 可以继续添加其他资源类型如图片 NSData *htmlData = [NSData dataWithContentsOfFile:filePath]; NSString *mimeType = [self mimeTypeForPath:filePath]; // 创建响应头 NSURLResponse *response = [[NSURLResponse alloc] initWithURL:url MIMEType:mimeType expectedContentLength:htmlData.length textEncodingName:@"utf-8"]; // 提供响应数据 [urlSchemeTask didReceiveResponse:response]; [urlSchemeTask didReceiveData:htmlData]; [urlSchemeTask didFinish]; } // 停止请求 - (void)webView:(WKWebView *)webView stopURLSchemeTask:(id<WKURLSchemeTask>)urlSchemeTask { // 通常不需要处理停止请求的逻辑 } - (NSString *)mimeTypeForPath:(NSString *)path { NSString *fileExtension = [path pathExtension]; if ([fileExtension isEqualToString:@"html"]) { return @"text/html"; } else if ([fileExtension isEqualToString:@"css"]) { return @"text/css"; } else if ([fileExtension isEqualToString:@"js"]) { return @"application/javascript"; } else if ([fileExtension isEqualToString:@"png"]) { return @"image/png"; } else if ([fileExtension isEqualToString:@"jpg"] || [fileExtension isEqualToString:@"jpeg"]) { return @"image/jpeg"; } else if ([fileExtension isEqualToString:@"gif"]) { return @"image/gif"; } return @"application/octet-stream"; } @end code-block