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Safari iOS 26.5.2: first navigation fails during HTTP/3 0-RTT; reload succeeds (FB23764937)
Has anyone else observed intermittent first-navigation failures in Safari on iOS 26 when HTTP/3 0-RTT resumption is available? Environment: iPhone 16 Pro, iOS 26.5.2 (23F84), Mobile Safari Wi-Fi with native IPv6 Cloudflare-proxied HTTPS hostname Normal browsing, not Private Browsing Reproduced almost daily on the first visit; an immediate reload succeeds Safari shows its native “cannot open the page because the server cannot be reached” page. The origin is healthy and neither the origin nor Cloudflare HTTP/security analytics records a corresponding HTTP failure. We captured the iPhone network interface over USB and compared a failed navigation with the successful reload. Failed navigation: DNS A, AAAA and HTTPS/SVCB answers completed normally. The HTTPS record advertised h3 and h2 with IPv4 and IPv6 hints. MobileSafari/WebKit opened several QUIC connections across the available IPv4 and IPv6 endpoints. Nearly all sent QUIC Initial packets plus 0-RTT application data. The edge replied promptly with Initial, Handshake and protected packets on both address families. Several flows did not settle and the edge retransmitted repeatedly. Safari also established a TCP/TLS fallback and received data, but still declared the navigation failed. Successful reload: One IPv4 QUIC connection. Full handshake, without 0-RTT. Normal bidirectional protected traffic and the page loaded. Control tests: Another proxied hostname succeeded with a full HTTP/3 handshake and no 0-RTT. A direct, non-proxied hostname succeeded over IPv6/TLS. HTTP/3 requests from the same Safari version otherwise received normal 200/204/302/304 responses. This looks like a CFNetwork/Network.framework/libquic session-resumption or connection-racing recovery issue rather than a WebKit rendering or origin-server problem. The encrypted capture does not let us determine whether the early data was accepted or rejected by the edge. Feedback filed: FB23764937. Important reproduction note: 0-RTT has now been disabled on the affected production zone while HTTP/3 remains enabled. Therefore that hostname can no longer reproduce the original 0-RTT path. This is an intentional mitigation; it will not be re-enabled on production solely for testing. Questions: Has anyone seen the same first-load failure followed by a successful reload on iOS 26? Is there a recommended way to collect CFNetwork/libquic diagnostics for a failure that occurs before an HTTP response exists? Should Safari replay the navigation after 0-RTT rejection or use the already-successful TCP/TLS fallback in this situation? A raw packet capture is available to Apple through the private Feedback report on request, but is not posted publicly because it contains client network identifiers.Has anyone else observed intermittent first-navigation failures in Safari on iOS 26 when HTTP/3 0-RTT resumption is available? Environment: iPhone 16 Pro, iOS 26.5.2 (23F84), Mobile Safari Wi-Fi with native IPv6 Cloudflare-proxied HTTPS hostname Normal browsing, not Private Browsing Reproduced almost daily on the first visit; an immediate reload succeeds Safari shows its native “cannot open the page because the server cannot be reached” page. The origin is healthy and neither the origin nor Cloudflare HTTP/security analytics records a corresponding HTTP failure. We captured the iPhone network interface over USB and compared a failed navigation with the successful reload. Failed navigation: DNS A, AAAA and HTTPS/SVCB answers completed normally. The HTTPS record advertised h3 and h2 with IPv4 and IPv6 hints. MobileSafari/WebKit opened several QUIC connections across the available IPv4 and IPv6 endpoints. Nearly all sent QUIC Initial packets plus 0-RTT application data. The edge replied promptly with Initial, Handshake and protected packets on both address families. Several flows did not settle and the edge retransmitted repeatedly. Safari also established a TCP/TLS fallback and received data, but still declared the navigation failed. Successful reload: One IPv4 QUIC connection. Full handshake, without 0-RTT. Normal bidirectional protected traffic and the page loaded. Control tests: Another proxied hostname succeeded with a full HTTP/3 handshake and no 0-RTT. A direct, non-proxied hostname succeeded over IPv6/TLS. HTTP/3 requests from the same Safari version otherwise received normal 200/204/302/304 responses. This looks like a CFNetwork/Network.framework/libquic session-resumption or connection-racing recovery issue rather than a WebKit rendering or origin-server problem. The encrypted capture does not let us determine whether the early data was accepted or rejected by the edge. Feedback filed: FB23764937. Important reproduction note: 0-RTT has now been disabled on the affected production zone while HTTP/3 remains enabled. Therefore that hostname can no longer reproduce the original 0-RTT path. This is an intentional mitigation; it will not be re-enabled on production solely for testing. Questions: Has anyone seen the same first-load failure followed by a successful reload on iOS 26? Is there a recommended way to collect CFNetwork/libquic diagnostics for a failure that occurs before an HTTP response exists? Should Safari replay the navigation after 0-RTT rejection or use the already-successful TCP/TLS fallback in this situation? A raw packet capture is available to Apple through the private Feedback report on request, but is not posted publicly because it contains client network identifiers.
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2.6k
Sep ’26
iCloud private relay issue in macOS 27 Beta 4
Although I have reduced my Mac's MTU to solve the MTU blackhole problem, Safari is quite slow if I enabled iCloud private relay (scenario 1). At the same time, Chrome functions normally. When I turns off iCloud private relay, the Safari's performance improves immediately. Packets captured by tcpdump at a LAN gateway (FreeBSD) shows iCloud private relay uses UDP protocol and doesn't fallback to TCP protocol. If the MTU blackhole is a problem, the connection will switch to TCP protocol, given prior tcpdump captures. I am waiting for macOS 27 Beta 5 but still no update released yet.
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1.7k
Sep ’26
Rendering problem on Apple MacBook M4 Pro
Is it only on my personal M4 Pro, or can someone help confirm the error? Minimal, Reproducible Example (error appears after ~18secs): https://www.oslobalanse.com Exact Environment Details: MacBook Pro, 14", November 2024. 24GB, macOS is Tahoe 26.6.2 Expected results: A kind of film strip behaviour is expected. The images should glide or pan with constant speed across screen from right to left. Images should halt until fully overlapped on left or right screen edge depending on width of image (if larger or smaller than actual window size). The loop should be continuous. Actual results (so far only confirmed on Apple M4 Pro): The only visible error is the appearance of huge black spaces when the images disappear (see after approx 18 secs). The speed of movement is also no longer constant. This bad behaviour has so far only been confirmed on Apple M4 Pro. Console Output: There are no errors visibly shown. Troubleshooting Steps Taken: I have tried and confirmed the error both on version 26.3 and 26.6. The error has also been confirme on both Safari and in Chrome. I have disabled hardware acceleration on Chrome, but it did not help.
Topic: Safari & Web SubTopic: General
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133
Sep ’26
Safari Web Extension Packager upload section missing in App Store Connect — prerequisites?
I am trying to use Safari Web Extension Packager to upload a web extension ZIP through App Store Connect, following this documentation: https://developer.apple.com/documentation/safariservices/packaging-and-distributing-safari-web-extensions-with-app-store-connect However, I cannot find the Packager upload section at all. Steps to reproduce: Sign in to App Store Connect as the Account Holder of an active Apple Developer Program membership. Open an existing app, then select Xcode Cloud. Scroll to the bottom of the page. Actual result: The page only shows the standard Xcode Cloud introduction, with “Get started in Xcode” and an “Open Xcode” button. There is no Safari Web Extension Packager section or ZIP upload control. Another app under the same team shows the same introduction page. Additional details: The existing Safari extension was previously distributed as an iOS app using Xcode. I want to use the Packager for the next update while retaining the existing app identity. The source is a WXT project and the Safari ZIP has been generated. I cannot reach the upload or build-validation step. During my September 6 checks, the Developer Program and App Store Connect agreements were accepted, with no pending agreement prompt. Apple Developer Support's account-support team directed me to the Developer Forums because they could not diagnose this technical issue. Could an Apple engineer clarify: Is Packager available to all eligible teams, or still being rolled out? Are there country/region restrictions, including mainland China? What prerequisites control the upload section? Must a team first enable a conventional Xcode Cloud workflow through local Xcode, even if the intended input is only a web extension ZIP? Can Packager update an existing app previously built with Xcode, or does initial setup require a new app record? What is the correct page or navigation path when only the Xcode Cloud introduction is visible? This question concerns access to the web-based packaging UI. A documented activation step or confirmation of availability requirements would be helpful. Screenshot of the missing upload section:
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154
Sep ’26
Safari iOS 26.6: front camera getUserMedia track reports landscape while the drawn frame is portrait, MediaRecorder writes a sideways file with no rotation flag (workaround inside)
Device: iPhone 15, iOS 26.6, Safari. Also reproduced on Android Chrome, so this is not only WebKit, but the missing rotation flag part is. Setup: a web page asks for the front camera with getUserMedia, shows it in a video element, and records with MediaRecorder. Phone held upright. What happens: Requesting portrait dimensions (width 1080, height 1920) returns the sensor's wide preset, 1920 by 1080, unrotated. exact instead of ideal gives the same or an error. aspectRatio 9/16 gives the same. Requesting landscape numbers (width 1920, height 1080) lets Safari pick the preset and rotate the picture to match how the phone is held. Even then, the video track's getSettings() reports width 1920 and height 1080, while the frame Safari draws into the video element is portrait. The preview looks right. The track lies. MediaRecorder records the unrotated sensor buffer. On older iOS the file carried a displaymatrix rotation of minus 90 degrees and players honoured it. On 26.6 that flag is gone, so the file plays sideways. Thread 786803 has other people finding the same. Workaround that works in production: Ask for the camera in landscape numbers. Do not trust getSettings(). Draw one frame of the video element onto a 16 by 16 canvas scaled from the larger reported dimension and check which corner has paint. If the bottom left is painted and the top right is not, the picture is tall. If the drawn picture is portrait but the track says landscape, record a canvas stream of the drawn picture at its own size instead of the raw track. If they agree, record the raw track. Put the H.264 High profile first in your mime type candidates. isTypeSupported says yes to Baseline and High, and list order decides, so Baseline first gives soft video. Working code, MIT, with the dead ends left in as comments: https://github.com/lagudafuadtosin/web-teleprompter (src/lib/camera.ts) Full write-up: https://dev.to/lagudafuad/why-your-web-teleprompter-records-sideways-on-iphone-and-the-fix-549m Question for Apple: is the dropped displaymatrix on MediaRecorder output in 26.x intentional, and is there a supported way to read the capture rotation off the track?
Topic: Safari & Web SubTopic: General Tags:
1
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871
Sep ’26
NEFilterPacketProvider significantly reduces outbound internet speed
I have found a possible performance issue with the Network Extension related to NEFilterPacketProvider. When a packet filter is disabled, my Mac gets the expected Internet upload speed. When an NEFilterPacketProvider is enabled, outbound/upload throughput drops substantially. The interesting part is that this is reproducible with a deliberately minimal test provider. The test provider only: receives packets; parses headers of several common protocols; writes diagnostic information using Unified Logging; allows all captured packets. It does not intentionally delay, modify, or drop packets, and it does not perform any other heavy processing or network activity. Reproduction Run a speed test at https://yandex.ru/internet/ with the packet filter disabled; Record the outbound/upload speed; Enable the NEFilterPacketProvider; Run the same test again; The outbound speed drops significantly; Disable the provider and repeat the test — the speed returns to the previous level; The effect is particularly noticeable on the outbound/upload direction; download performance is much less affected. For example: Configuration Download Upload Packet filter disabled ~700 Mbps ~600 Mbps Packet filter enabled ~700 Mbps ~110 Mbps I've submitted a Feedback Assistant report with a minimal reproducible sample - FB24686601. The sample is attached to the feedback. Has anyone else observed a similar outbound throughput reduction when NEFilterPacketProvider is enabled? I'm particularly interested in whether this is expected overhead of the packet-filtering architecture, a known limitation, or a possible macOS/Network Extension regression.
Topic: Safari & Web SubTopic: General
0
0
138
Sep ’26
Preview enforcing password on pdf files -iPadOS27 beta
PDF files previewed from government websites are having passwords restrictions applied to all functions - view, print etc., this was a known error a few versions back but it seems to have been reintroduced in the iPadOS27 beta. It is reproducible and I have used a Linux machine to access the same file with no errors.
Topic: Safari & Web SubTopic: General
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1
324
Sep ’26
iOS/iPadOS 18+: Camera Video Recorded via Browser Appears Flipped or Upside Down
I'm encountering an issue with front camera video recordings via browser (Safari/Chrome) on devices running iOS/iPadOS 18 and above: On iPad, the recorded video appears upside down. On iPhone, the recorded video is rotated 90 degrees. The rear camera functions correctly without orientation issues. This problem seems specific to browser-based recordings, as the native Camera app records videos with the correct orientation. Has anyone else experienced this behavior? Is there a known workaround or fix? The preview while recording is fine, the recorded video is oriented incorrectly.
2
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1.7k
Sep ’26
Safari incorrectly shows “Fraudulent Website Warning” for a legitimate website — false positive
Hello Apple engineers and developers, I’m the owner/developer of https://mated.uz/, a legitimate SaaS platform for businesses in Uzbekistan. We have been experiencing a serious issue with Safari for approximately one month: Safari incorrectly displays a red “Fraudulent Website Warning” for our website. The important part is that the problem appears to be Safari-specific. The website works normally in: Chrome Microsoft Edge Firefox other browsers The website is a legitimate business platform and does not contain phishing pages, malware, deceptive content, or attempts to impersonate Apple or another service. What we have already done We have repeatedly submitted the domain for review through Apple’s website review process, including several requests over the past month. However, the warning is still present and we have not received a clear explanation of what is triggering the classification. We have also checked the website and its infrastructure for common causes: HTTPS / TLS certificate is valid No intentional redirects to suspicious domains No phishing or credential-harvesting pages No malware No deceptive content The website works correctly in other browsers The domain is actively used by a real operating business The problem This is becoming a real business issue because users who open our website from an iPhone or Mac using Safari may see a warning that effectively tells them our business is fraudulent. For a SaaS company, this significantly damages user trust and can prevent potential customers from accessing the platform. We would really appreciate guidance from Apple engineers on the following: How can we determine why Safari has classified our domain as fraudulent? Does Safari use an independent reputation database for this warning, separate from Google Safe Browsing? Is there any technical information or diagnostic data that website owners can use to identify the reason for the classification? Is there another escalation/review channel when the standard Website Review requests do not resolve a false positive? Are there specific DNS, hosting, redirect, TLS, domain-reputation, or third-party-script signals that we should investigate? We are happy to provide screenshots, domain information, security scan results, or any other technical information required. This appears to be a false positive affecting Safari only, and we would really appreciate any guidance on how to get the domain reviewed and the warning removed. Thank you.
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0
430
Sep ’26
Safari iOS 26.5.2: first navigation fails during HTTP/3 0-RTT; reload succeeds (FB23764937)
Has anyone else observed intermittent first-navigation failures in Safari on iOS 26 when HTTP/3 0-RTT resumption is available? Environment: iPhone 16 Pro, iOS 26.5.2 (23F84), Mobile Safari Wi-Fi with native IPv6 Cloudflare-proxied HTTPS hostname Normal browsing, not Private Browsing Reproduced almost daily on the first visit; an immediate reload succeeds Safari shows its native “cannot open the page because the server cannot be reached” page. The origin is healthy and neither the origin nor Cloudflare HTTP/security analytics records a corresponding HTTP failure. We captured the iPhone network interface over USB and compared a failed navigation with the successful reload. Failed navigation: DNS A, AAAA and HTTPS/SVCB answers completed normally. The HTTPS record advertised h3 and h2 with IPv4 and IPv6 hints. MobileSafari/WebKit opened several QUIC connections across the available IPv4 and IPv6 endpoints. Nearly all sent QUIC Initial packets plus 0-RTT application data. The edge replied promptly with Initial, Handshake and protected packets on both address families. Several flows did not settle and the edge retransmitted repeatedly. Safari also established a TCP/TLS fallback and received data, but still declared the navigation failed. Successful reload: One IPv4 QUIC connection. Full handshake, without 0-RTT. Normal bidirectional protected traffic and the page loaded. Control tests: Another proxied hostname succeeded with a full HTTP/3 handshake and no 0-RTT. A direct, non-proxied hostname succeeded over IPv6/TLS. HTTP/3 requests from the same Safari version otherwise received normal 200/204/302/304 responses. This looks like a CFNetwork/Network.framework/libquic session-resumption or connection-racing recovery issue rather than a WebKit rendering or origin-server problem. The encrypted capture does not let us determine whether the early data was accepted or rejected by the edge. Feedback filed: FB23764937. Important reproduction note: 0-RTT has now been disabled on the affected production zone while HTTP/3 remains enabled. Therefore that hostname can no longer reproduce the original 0-RTT path. This is an intentional mitigation; it will not be re-enabled on production solely for testing. Questions: Has anyone seen the same first-load failure followed by a successful reload on iOS 26? Is there a recommended way to collect CFNetwork/libquic diagnostics for a failure that occurs before an HTTP response exists? Should Safari replay the navigation after 0-RTT rejection or use the already-successful TCP/TLS fallback in this situation? A raw packet capture is available to Apple through the private Feedback report on request, but is not posted publicly because it contains client network identifiers.Has anyone else observed intermittent first-navigation failures in Safari on iOS 26 when HTTP/3 0-RTT resumption is available? Environment: iPhone 16 Pro, iOS 26.5.2 (23F84), Mobile Safari Wi-Fi with native IPv6 Cloudflare-proxied HTTPS hostname Normal browsing, not Private Browsing Reproduced almost daily on the first visit; an immediate reload succeeds Safari shows its native “cannot open the page because the server cannot be reached” page. The origin is healthy and neither the origin nor Cloudflare HTTP/security analytics records a corresponding HTTP failure. We captured the iPhone network interface over USB and compared a failed navigation with the successful reload. Failed navigation: DNS A, AAAA and HTTPS/SVCB answers completed normally. The HTTPS record advertised h3 and h2 with IPv4 and IPv6 hints. MobileSafari/WebKit opened several QUIC connections across the available IPv4 and IPv6 endpoints. Nearly all sent QUIC Initial packets plus 0-RTT application data. The edge replied promptly with Initial, Handshake and protected packets on both address families. Several flows did not settle and the edge retransmitted repeatedly. Safari also established a TCP/TLS fallback and received data, but still declared the navigation failed. Successful reload: One IPv4 QUIC connection. Full handshake, without 0-RTT. Normal bidirectional protected traffic and the page loaded. Control tests: Another proxied hostname succeeded with a full HTTP/3 handshake and no 0-RTT. A direct, non-proxied hostname succeeded over IPv6/TLS. HTTP/3 requests from the same Safari version otherwise received normal 200/204/302/304 responses. This looks like a CFNetwork/Network.framework/libquic session-resumption or connection-racing recovery issue rather than a WebKit rendering or origin-server problem. The encrypted capture does not let us determine whether the early data was accepted or rejected by the edge. Feedback filed: FB23764937. Important reproduction note: 0-RTT has now been disabled on the affected production zone while HTTP/3 remains enabled. Therefore that hostname can no longer reproduce the original 0-RTT path. This is an intentional mitigation; it will not be re-enabled on production solely for testing. Questions: Has anyone seen the same first-load failure followed by a successful reload on iOS 26? Is there a recommended way to collect CFNetwork/libquic diagnostics for a failure that occurs before an HTTP response exists? Should Safari replay the navigation after 0-RTT rejection or use the already-successful TCP/TLS fallback in this situation? A raw packet capture is available to Apple through the private Feedback report on request, but is not posted publicly because it contains client network identifiers.
Replies
5
Boosts
2
Views
2.6k
Activity
Sep ’26
iCloud private relay issue in macOS 27 Beta 4
Although I have reduced my Mac's MTU to solve the MTU blackhole problem, Safari is quite slow if I enabled iCloud private relay (scenario 1). At the same time, Chrome functions normally. When I turns off iCloud private relay, the Safari's performance improves immediately. Packets captured by tcpdump at a LAN gateway (FreeBSD) shows iCloud private relay uses UDP protocol and doesn't fallback to TCP protocol. If the MTU blackhole is a problem, the connection will switch to TCP protocol, given prior tcpdump captures. I am waiting for macOS 27 Beta 5 but still no update released yet.
Replies
2
Boosts
0
Views
1.7k
Activity
Sep ’26
Rendering problem on Apple MacBook M4 Pro
Is it only on my personal M4 Pro, or can someone help confirm the error? Minimal, Reproducible Example (error appears after ~18secs): https://www.oslobalanse.com Exact Environment Details: MacBook Pro, 14", November 2024. 24GB, macOS is Tahoe 26.6.2 Expected results: A kind of film strip behaviour is expected. The images should glide or pan with constant speed across screen from right to left. Images should halt until fully overlapped on left or right screen edge depending on width of image (if larger or smaller than actual window size). The loop should be continuous. Actual results (so far only confirmed on Apple M4 Pro): The only visible error is the appearance of huge black spaces when the images disappear (see after approx 18 secs). The speed of movement is also no longer constant. This bad behaviour has so far only been confirmed on Apple M4 Pro. Console Output: There are no errors visibly shown. Troubleshooting Steps Taken: I have tried and confirmed the error both on version 26.3 and 26.6. The error has also been confirme on both Safari and in Chrome. I have disabled hardware acceleration on Chrome, but it did not help.
Topic: Safari & Web SubTopic: General
Replies
0
Boosts
0
Views
133
Activity
Sep ’26
Safari Web Extension Packager upload section missing in App Store Connect — prerequisites?
I am trying to use Safari Web Extension Packager to upload a web extension ZIP through App Store Connect, following this documentation: https://developer.apple.com/documentation/safariservices/packaging-and-distributing-safari-web-extensions-with-app-store-connect However, I cannot find the Packager upload section at all. Steps to reproduce: Sign in to App Store Connect as the Account Holder of an active Apple Developer Program membership. Open an existing app, then select Xcode Cloud. Scroll to the bottom of the page. Actual result: The page only shows the standard Xcode Cloud introduction, with “Get started in Xcode” and an “Open Xcode” button. There is no Safari Web Extension Packager section or ZIP upload control. Another app under the same team shows the same introduction page. Additional details: The existing Safari extension was previously distributed as an iOS app using Xcode. I want to use the Packager for the next update while retaining the existing app identity. The source is a WXT project and the Safari ZIP has been generated. I cannot reach the upload or build-validation step. During my September 6 checks, the Developer Program and App Store Connect agreements were accepted, with no pending agreement prompt. Apple Developer Support's account-support team directed me to the Developer Forums because they could not diagnose this technical issue. Could an Apple engineer clarify: Is Packager available to all eligible teams, or still being rolled out? Are there country/region restrictions, including mainland China? What prerequisites control the upload section? Must a team first enable a conventional Xcode Cloud workflow through local Xcode, even if the intended input is only a web extension ZIP? Can Packager update an existing app previously built with Xcode, or does initial setup require a new app record? What is the correct page or navigation path when only the Xcode Cloud introduction is visible? This question concerns access to the web-based packaging UI. A documented activation step or confirmation of availability requirements would be helpful. Screenshot of the missing upload section:
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0
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0
Views
154
Activity
Sep ’26
Safari iOS 26.6: front camera getUserMedia track reports landscape while the drawn frame is portrait, MediaRecorder writes a sideways file with no rotation flag (workaround inside)
Device: iPhone 15, iOS 26.6, Safari. Also reproduced on Android Chrome, so this is not only WebKit, but the missing rotation flag part is. Setup: a web page asks for the front camera with getUserMedia, shows it in a video element, and records with MediaRecorder. Phone held upright. What happens: Requesting portrait dimensions (width 1080, height 1920) returns the sensor's wide preset, 1920 by 1080, unrotated. exact instead of ideal gives the same or an error. aspectRatio 9/16 gives the same. Requesting landscape numbers (width 1920, height 1080) lets Safari pick the preset and rotate the picture to match how the phone is held. Even then, the video track's getSettings() reports width 1920 and height 1080, while the frame Safari draws into the video element is portrait. The preview looks right. The track lies. MediaRecorder records the unrotated sensor buffer. On older iOS the file carried a displaymatrix rotation of minus 90 degrees and players honoured it. On 26.6 that flag is gone, so the file plays sideways. Thread 786803 has other people finding the same. Workaround that works in production: Ask for the camera in landscape numbers. Do not trust getSettings(). Draw one frame of the video element onto a 16 by 16 canvas scaled from the larger reported dimension and check which corner has paint. If the bottom left is painted and the top right is not, the picture is tall. If the drawn picture is portrait but the track says landscape, record a canvas stream of the drawn picture at its own size instead of the raw track. If they agree, record the raw track. Put the H.264 High profile first in your mime type candidates. isTypeSupported says yes to Baseline and High, and list order decides, so Baseline first gives soft video. Working code, MIT, with the dead ends left in as comments: https://github.com/lagudafuadtosin/web-teleprompter (src/lib/camera.ts) Full write-up: https://dev.to/lagudafuad/why-your-web-teleprompter-records-sideways-on-iphone-and-the-fix-549m Question for Apple: is the dropped displaymatrix on MediaRecorder output in 26.x intentional, and is there a supported way to read the capture rotation off the track?
Topic: Safari & Web SubTopic: General Tags:
Replies
1
Boosts
0
Views
871
Activity
Sep ’26
NEFilterPacketProvider significantly reduces outbound internet speed
I have found a possible performance issue with the Network Extension related to NEFilterPacketProvider. When a packet filter is disabled, my Mac gets the expected Internet upload speed. When an NEFilterPacketProvider is enabled, outbound/upload throughput drops substantially. The interesting part is that this is reproducible with a deliberately minimal test provider. The test provider only: receives packets; parses headers of several common protocols; writes diagnostic information using Unified Logging; allows all captured packets. It does not intentionally delay, modify, or drop packets, and it does not perform any other heavy processing or network activity. Reproduction Run a speed test at https://yandex.ru/internet/ with the packet filter disabled; Record the outbound/upload speed; Enable the NEFilterPacketProvider; Run the same test again; The outbound speed drops significantly; Disable the provider and repeat the test — the speed returns to the previous level; The effect is particularly noticeable on the outbound/upload direction; download performance is much less affected. For example: Configuration Download Upload Packet filter disabled ~700 Mbps ~600 Mbps Packet filter enabled ~700 Mbps ~110 Mbps I've submitted a Feedback Assistant report with a minimal reproducible sample - FB24686601. The sample is attached to the feedback. Has anyone else observed a similar outbound throughput reduction when NEFilterPacketProvider is enabled? I'm particularly interested in whether this is expected overhead of the packet-filtering architecture, a known limitation, or a possible macOS/Network Extension regression.
Topic: Safari & Web SubTopic: General
Replies
0
Boosts
0
Views
138
Activity
Sep ’26
Preview enforcing password on pdf files -iPadOS27 beta
PDF files previewed from government websites are having passwords restrictions applied to all functions - view, print etc., this was a known error a few versions back but it seems to have been reintroduced in the iPadOS27 beta. It is reproducible and I have used a Linux machine to access the same file with no errors.
Topic: Safari & Web SubTopic: General
Replies
0
Boosts
1
Views
324
Activity
Sep ’26
iOS/iPadOS 18+: Camera Video Recorded via Browser Appears Flipped or Upside Down
I'm encountering an issue with front camera video recordings via browser (Safari/Chrome) on devices running iOS/iPadOS 18 and above: On iPad, the recorded video appears upside down. On iPhone, the recorded video is rotated 90 degrees. The rear camera functions correctly without orientation issues. This problem seems specific to browser-based recordings, as the native Camera app records videos with the correct orientation. Has anyone else experienced this behavior? Is there a known workaround or fix? The preview while recording is fine, the recorded video is oriented incorrectly.
Replies
2
Boosts
1
Views
1.7k
Activity
Sep ’26
Safari incorrectly shows “Fraudulent Website Warning” for a legitimate website — false positive
Hello Apple engineers and developers, I’m the owner/developer of https://mated.uz/, a legitimate SaaS platform for businesses in Uzbekistan. We have been experiencing a serious issue with Safari for approximately one month: Safari incorrectly displays a red “Fraudulent Website Warning” for our website. The important part is that the problem appears to be Safari-specific. The website works normally in: Chrome Microsoft Edge Firefox other browsers The website is a legitimate business platform and does not contain phishing pages, malware, deceptive content, or attempts to impersonate Apple or another service. What we have already done We have repeatedly submitted the domain for review through Apple’s website review process, including several requests over the past month. However, the warning is still present and we have not received a clear explanation of what is triggering the classification. We have also checked the website and its infrastructure for common causes: HTTPS / TLS certificate is valid No intentional redirects to suspicious domains No phishing or credential-harvesting pages No malware No deceptive content The website works correctly in other browsers The domain is actively used by a real operating business The problem This is becoming a real business issue because users who open our website from an iPhone or Mac using Safari may see a warning that effectively tells them our business is fraudulent. For a SaaS company, this significantly damages user trust and can prevent potential customers from accessing the platform. We would really appreciate guidance from Apple engineers on the following: How can we determine why Safari has classified our domain as fraudulent? Does Safari use an independent reputation database for this warning, separate from Google Safe Browsing? Is there any technical information or diagnostic data that website owners can use to identify the reason for the classification? Is there another escalation/review channel when the standard Website Review requests do not resolve a false positive? Are there specific DNS, hosting, redirect, TLS, domain-reputation, or third-party-script signals that we should investigate? We are happy to provide screenshots, domain information, security scan results, or any other technical information required. This appears to be a false positive affecting Safari only, and we would really appreciate any guidance on how to get the domain reviewed and the warning removed. Thank you.
Replies
0
Boosts
0
Views
430
Activity
Sep ’26