Remove QWebEngineUrlResponseInterceptor API

It has been found to not have any real effect, therefore, we remove it
again to not release a non-functional API and create false expectations
in users.

This reverts commits
    3f5de5fab74e6c152cdf5d04f3d893feaa31790b
    ab21f39c6a54be331dd8a155d3374bfe790e0274 (parts)
    082eef1916a86d6d5e0c751d271c7c8a1a5e457d
    5e257fb57a211f95556ec387fe6f262a60cbb6fe

Pick-to: 6.6
Task-number: QTBUG-61071
Change-Id: Ifb33e32128e77dfffed863a1a7501ba21796692d
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@qt.io>

21 files changed, 3 insertions, 567 deletions

diff --git a/src/core/api/CMakeLists.txt b/src/core/api/CMakeLists.txt
index f860e0ba7..cc3c593e5 100644
--- a/src/core/api/CMakeLists.txt
+++ b/src/core/api/CMakeLists.txt
@@ -34,8 +34,6 @@ qt_internal_add_module(WebEngineCore
         qwebenginesettings.cpp qwebenginesettings.h
         qwebengineurlrequestinfo.cpp qwebengineurlrequestinfo.h qwebengineurlrequestinfo_p.h
         qwebengineurlrequestinterceptor.h qwebengineurlrequestinterceptor.cpp
-        qwebengineurlresponseinterceptor.h qwebengineurlresponseinterceptor.cpp
-        qwebengineurlresponseinfo.cpp qwebengineurlresponseinfo.h qwebengineurlresponseinfo_p.h
         qwebengineurlrequestjob.cpp qwebengineurlrequestjob.h
         qwebengineurlscheme.cpp qwebengineurlscheme.h
         qwebengineurlschemehandler.cpp qwebengineurlschemehandler.h
diff --git a/src/core/api/qwebenginepage.cpp b/src/core/api/qwebenginepage.cpp
index 4b235c265..f00f33260 100644
--- a/src/core/api/qwebenginepage.cpp
+++ b/src/core/api/qwebenginepage.cpp
@@ -1696,26 +1696,6 @@ void QWebEnginePage::setUrlRequestInterceptor(QWebEngineUrlRequestInterceptor *i
     d->adapter->setRequestInterceptor(interceptor);
 }
 
-/*!
-    \since 6.6
-
-    Registers the response interceptor \a interceptor to intercept URL response headers.
-
-    The page does not take ownership of the pointer. This interceptor is called
-    after any interceptors on the profile, and unlike profile interceptors, only
-    URL responses to this page are intercepted.
-
-    To unset the response interceptor, set a \c nullptr.
-
-    \sa QWebEngineUrlResponseInterceptor, QWebEngineProfile::setUrlResponseInterceptor()
-*/
-
-void QWebEnginePage::setUrlResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor)
-{
-    Q_D(QWebEnginePage);
-    d->adapter->setResponseInterceptor(interceptor);
-}
-
 void QWebEnginePage::setFeaturePermission(const QUrl &securityOrigin, QWebEnginePage::Feature feature, QWebEnginePage::PermissionPolicy policy)
 {
     Q_D(QWebEnginePage);
diff --git a/src/core/api/qwebenginepage.h b/src/core/api/qwebenginepage.h
index 7c970aabf..39e1d1160 100644
--- a/src/core/api/qwebenginepage.h
+++ b/src/core/api/qwebenginepage.h
@@ -40,7 +40,6 @@ class QWebEngineRegisterProtocolHandlerRequest;
 class QWebEngineScriptCollection;
 class QWebEngineSettings;
 class QWebEngineUrlRequestInterceptor;
-class QWebEngineUrlResponseInterceptor;
 class QWebEngineWebAuthUXRequest;
 
 class Q_WEBENGINECORE_EXPORT QWebEnginePage : public QObject
@@ -290,7 +289,6 @@ public:
     QString devToolsId() const;
 
     void setUrlRequestInterceptor(QWebEngineUrlRequestInterceptor *interceptor);
-    void setUrlResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor);
 
     LifecycleState lifecycleState() const;
     void setLifecycleState(LifecycleState state);
diff --git a/src/core/api/qwebengineprofile.cpp b/src/core/api/qwebengineprofile.cpp
index 0330ad951..2124afedf 100644
--- a/src/core/api/qwebengineprofile.cpp
+++ b/src/core/api/qwebengineprofile.cpp
@@ -62,12 +62,9 @@ using QtWebEngineCore::ProfileAdapter;
     The default profile can be accessed by defaultProfile(). It is a built-in profile that all
     web pages not specifically created with another profile belong to.
 
-    You can implement interceptor interfaces for URL requests and responses and register them
-    on a profile to intercept, block, or modify URL requests before they reach the networking
-    stack of Chromium or response headers right after they come off the networking stack of
-    Chromium. For requests, implement QWebEngineUrlRequestInterceptor and register it via
-    setUrlRequestInterceptor(). For response headers, implement QWebEngineUrlResponseInterceptor
-    and register it via setUrlResponseInterceptor().
+    Implementing the QWebEngineUrlRequestInterceptor interface and registering the interceptor on a
+    profile by setUrlRequestInterceptor() enables intercepting, blocking, and modifying URL
+    requests (QWebEngineUrlRequestInfo) before they reach the networking stack of Chromium.
 
     A QWebEngineUrlSchemeHandler can be registered for a profile by installUrlSchemeHandler()
     to add support for custom URL schemes. Requests for the scheme are then issued to
@@ -622,21 +619,6 @@ void QWebEngineProfile::setUrlRequestInterceptor(QWebEngineUrlRequestInterceptor
 }
 
 /*!
-    Registers a response interceptor singleton \a interceptor to intercept URL response headers.
-
-    The profile does not take ownership of the pointer.
-
-    \since 6.6
-    \sa QWebEngineUrlResponseInterceptor
-*/
-
-void QWebEngineProfile::setUrlResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor)
-{
-    Q_D(QWebEngineProfile);
-    d->profileAdapter()->setResponseInterceptor(interceptor);
-}
-
-/*!
     Clears all links from the visited links database.
 
     \sa clearVisitedLinks()
diff --git a/src/core/api/qwebengineprofile.h b/src/core/api/qwebengineprofile.h
index 092de041f..756f77d36 100644
--- a/src/core/api/qwebengineprofile.h
+++ b/src/core/api/qwebengineprofile.h
@@ -24,7 +24,6 @@ class QWebEngineProfilePrivate;
 class QWebEngineSettings;
 class QWebEngineScriptCollection;
 class QWebEngineUrlRequestInterceptor;
-class QWebEngineUrlResponseInterceptor;
 class QWebEngineUrlSchemeHandler;
 
 class Q_WEBENGINECORE_EXPORT QWebEngineProfile : public QObject
@@ -75,7 +74,6 @@ public:
 
     QWebEngineCookieStore *cookieStore();
     void setUrlRequestInterceptor(QWebEngineUrlRequestInterceptor *interceptor);
-    void setUrlResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor);
 
     void clearAllVisitedLinks();
     void clearVisitedLinks(const QList<QUrl> &urls);
diff --git a/src/core/api/qwebengineurlresponseinfo.cpp b/src/core/api/qwebengineurlresponseinfo.cpp
deleted file mode 100644
index e904bc8cf..000000000
--- a/src/core/api/qwebengineurlresponseinfo.cpp
+++ /dev/null
@@ -1,79 +0,0 @@
-// Copyright (C) 2023 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qwebengineurlresponseinfo.h"
-#include "qwebengineurlresponseinfo_p.h"
-
-QT_BEGIN_NAMESPACE
-
-/*!
-    \class QWebEngineUrlResponseInfo
-    \brief A utility type for the QWebEngineUrlResponseInterceptor.
-    \inmodule QtWebEngineCore
-    \since 6.6
-
-    Contains information about the request that has caused the response
-    intercepted by a QWebEngineUrlResponseInterceptor.
-
-    \sa QWebEngineUrlResponseInterceptor
-*/
-QWebEngineUrlResponseInfo::QWebEngineUrlResponseInfo(
-        const QUrl &requestUrl, const QMultiHash<QByteArray, QByteArray> &requestHeaders,
-        const QHash<QByteArray, QByteArray> &responseHeaders, QObject *p)
-    : QObject(p)
-    , d_ptr(new QWebEngineUrlResponseInfoPrivate(requestUrl, requestHeaders, responseHeaders))
-{
-}
-
-QWebEngineUrlResponseInfo::~QWebEngineUrlResponseInfo(){};
-
-/*!
-    \property QWebEngineUrlResponseInfo::requestUrl
-    \brief Holds the URL of the URL load request.
-*/
-QUrl QWebEngineUrlResponseInfo::requestUrl() const
-{
-    Q_D(const QWebEngineUrlResponseInfo);
-    return d->requestUrl;
-}
-
-/*!
-    \property QWebEngineUrlResponseInfo::requestHeaders
-    \brief Holds the request headers of the URL load request.
-*/
-QMultiHash<QByteArray, QByteArray> QWebEngineUrlResponseInfo::requestHeaders() const
-{
-    Q_D(const QWebEngineUrlResponseInfo);
-    return d->requestHeaders;
-}
-
-/*!
-    \property QWebEngineUrlResponseInfo::responseHeaders
-    \brief Holds the response headers of the URL load request.
-*/
-QHash<QByteArray, QByteArray> QWebEngineUrlResponseInfo::responseHeaders() const
-{
-    Q_D(const QWebEngineUrlResponseInfo);
-    return d->responseHeaders;
-}
-
-/*!
-    \brief Sets the response headers to \a newResponseHeaders.
-
-    Sets the response headers to \a newResponseHeaders. If \a newResponseHeaders
-    differ from the current response headers then
-    QWebEngineUrlResponseInfo::isModified() will now return \c true.
-*/
-void QWebEngineUrlResponseInfo::setResponseHeaders(
-        const QHash<QByteArray, QByteArray> &newResponseHeaders)
-{
-    Q_D(QWebEngineUrlResponseInfo);
-    if (d->responseHeaders != newResponseHeaders) {
-        d->responseHeaders = newResponseHeaders;
-        d->isModified = true;
-    }
-}
-
-QT_END_NAMESPACE
-
-#include "moc_qwebengineurlresponseinfo.cpp"
diff --git a/src/core/api/qwebengineurlresponseinfo.h b/src/core/api/qwebengineurlresponseinfo.h
deleted file mode 100644
index 980c25928..000000000
--- a/src/core/api/qwebengineurlresponseinfo.h
+++ /dev/null
@@ -1,51 +0,0 @@
-// Copyright (C) 2023 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QWEBENGINEURLRESPONSEINFO_H
-#define QWEBENGINEURLRESPONSEINFO_H
-
-#include <QtWebEngineCore/qtwebenginecoreglobal.h>
-
-#include <QtCore/QUrl>
-#include <QtCore/QHash>
-#include <QtCore/QObject>
-
-namespace QtWebEngineCore {
-class InterceptedRequest;
-}
-
-QT_BEGIN_NAMESPACE
-
-class QWebEngineUrlResponseInfoPrivate;
-
-class Q_WEBENGINECORE_EXPORT QWebEngineUrlResponseInfo : public QObject
-{
-    Q_OBJECT
-    Q_PROPERTY(QUrl requestUrl READ requestUrl CONSTANT FINAL)
-    Q_PROPERTY(QMultiHash<QByteArray, QByteArray> requestHeaders READ requestHeaders CONSTANT FINAL)
-    Q_PROPERTY(QHash<QByteArray,QByteArray> responseHeaders READ responseHeaders WRITE
-                       setResponseHeaders)
-
-public:
-    ~QWebEngineUrlResponseInfo() override;
-
-    QUrl requestUrl() const;
-    QMultiHash<QByteArray, QByteArray> requestHeaders() const;
-    QHash<QByteArray, QByteArray> responseHeaders() const;
-
-    void setResponseHeaders(const QHash<QByteArray, QByteArray> &newResponseHeaders);
-
-private:
-    friend class QtWebEngineCore::InterceptedRequest;
-    Q_DECLARE_PRIVATE(QWebEngineUrlResponseInfo)
-    QWebEngineUrlResponseInfoPrivate *d_ptr;
-
-    explicit QWebEngineUrlResponseInfo(const QUrl &requestUrl,
-                                       const QMultiHash<QByteArray, QByteArray> &requestHeaders,
-                                       const QHash<QByteArray, QByteArray> &responseHeaders,
-                                       QObject *p = nullptr);
-};
-
-QT_END_NAMESPACE
-
-#endif // QWEBENGINEURLRESPONSEINFO_H
diff --git a/src/core/api/qwebengineurlresponseinfo_p.h b/src/core/api/qwebengineurlresponseinfo_p.h
deleted file mode 100644
index 162da2f8b..000000000
--- a/src/core/api/qwebengineurlresponseinfo_p.h
+++ /dev/null
@@ -1,46 +0,0 @@
-// Copyright (C) 2023 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QWEBENGINEURLRESPONSEINFO_P_H
-#define QWEBENGINEURLRESPONSEINFO_P_H
-
-//
-//  W A R N I N G
-//  -------------
-//
-// This file is not part of the Qt API.  It exists purely as an
-// implementation detail.  This header file may change from version to
-// version without notice, or even be removed.
-//
-// We mean it.
-//
-
-#include "qtwebenginecoreglobal_p.h"
-
-#include <QtCore/QHash>
-#include <QtCore/QUrl>
-
-QT_BEGIN_NAMESPACE
-
-class Q_WEBENGINECORE_PRIVATE_EXPORT QWebEngineUrlResponseInfoPrivate
-{
-public:
-    QWebEngineUrlResponseInfoPrivate(const QUrl &requestUrl,
-                                     const QMultiHash<QByteArray, QByteArray> &requestHeaders,
-                                     const QHash<QByteArray, QByteArray> &responseHeaders)
-        : requestUrl(requestUrl)
-        , requestHeaders(requestHeaders)
-        , responseHeaders(responseHeaders)
-        , isModified(false)
-    {
-    }
-
-    QUrl requestUrl;
-    QMultiHash<QByteArray, QByteArray> requestHeaders;
-    QHash<QByteArray, QByteArray> responseHeaders;
-    bool isModified;
-};
-
-QT_END_NAMESPACE
-
-#endif // QWEBENGINEURLRESPONSEINFO_P_H
diff --git a/src/core/api/qwebengineurlresponseinterceptor.cpp b/src/core/api/qwebengineurlresponseinterceptor.cpp
deleted file mode 100644
index 3c9c6f36b..000000000
--- a/src/core/api/qwebengineurlresponseinterceptor.cpp
+++ /dev/null
@@ -1,10 +0,0 @@
-// Copyright (C) 2021 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#include "qwebengineurlresponseinterceptor.h"
-
-QT_BEGIN_NAMESPACE
-
-QWebEngineUrlResponseInterceptor::~QWebEngineUrlResponseInterceptor() = default;
-
-QT_END_NAMESPACE
diff --git a/src/core/api/qwebengineurlresponseinterceptor.h b/src/core/api/qwebengineurlresponseinterceptor.h
deleted file mode 100644
index d3526861b..000000000
--- a/src/core/api/qwebengineurlresponseinterceptor.h
+++ /dev/null
@@ -1,26 +0,0 @@
-// Copyright (C) 2023 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-#ifndef QWEBENGINEURLRESPONSEINTERCEPTOR_H
-#define QWEBENGINEURLRESPONSEINTERCEPTOR_H
-
-#include <QtWebEngineCore/qtwebenginecoreglobal.h>
-
-#include <QtCore/QObject>
-
-QT_BEGIN_NAMESPACE
-
-class QWebEngineUrlResponseInfo;
-
-class Q_WEBENGINECORE_EXPORT QWebEngineUrlResponseInterceptor : public QObject
-{
-    Q_OBJECT
-public:
-    explicit QWebEngineUrlResponseInterceptor(QObject *p = nullptr) : QObject(p) { }
-    ~QWebEngineUrlResponseInterceptor() override;
-    virtual void interceptResponseHeaders(QWebEngineUrlResponseInfo &info) = 0;
-};
-
-QT_END_NAMESPACE
-
-#endif // QWEBENGINEURLRESPONSEINTERCEPTOR_H
diff --git a/src/core/doc/src/qwebengineurlresponseinterceptor.qdoc b/src/core/doc/src/qwebengineurlresponseinterceptor.qdoc
deleted file mode 100644
index cbbd88bcf..000000000
--- a/src/core/doc/src/qwebengineurlresponseinterceptor.qdoc
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright (C) 2023 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
-
-/*!
-    \class QWebEngineUrlResponseInterceptor
-    \since 6.6
-    \brief The QWebEngineUrlResponseInterceptor class provides an abstract base class for
-           URL response interception.
-
-    \inmodule QtWebEngineCore
-
-    Implementing the \l{QWebEngineUrlResponseInterceptor} interface and installing the
-    interceptor on the profile or the page enables intercepting, blocking, and modifying
-    URL responses right as they come off the networking stack. Currently, only the response
-    headers can be accessed and modified.
-
-    You can install the interceptor on a profile via
-    QWebEngineProfile::setUrlResponseInterceptor() or
-    QQuickWebEngineProfile::setUrlResponseInterceptor() and on a page via
-    QWebEnginePage::setUrlResponseInterceptor().
-
-    \sa QWebEngineUrlResponseInterceptor::interceptResponseHeaders(),
-        QWebEngineProfile::setUrlResponseInterceptor(),
-        QQuickWebEngineProfile::setUrlResponseInterceptor(),
-        QWebEnginePage::setUrlResponseInterceptor()
-*/
-
-/*!
-    \fn QWebEngineUrlResponseInterceptor::QWebEngineUrlResponseInterceptor(QObject *p = nullptr)
-
-    Creates a new response interceptor object with \a p as parent.
-*/
-
-/*!
-    \fn void QWebEngineUrlResponseInterceptor::interceptResponseHeaders(
-        QWebEngineUrlResponseInfo &info)
-
-    Reimplement this virtual function to intercept URL
-    response headers. This method stalls the URL load until handled.
-
-    \a info contains the request and response data. Call
-    info.setResponseHeaders() to modify the response headers.
-
-    \sa QWebEngineUrlResponseInfo
-*/
diff --git a/src/core/net/proxying_url_loader_factory_qt.cpp b/src/core/net/proxying_url_loader_factory_qt.cpp
index e52b92b2c..780ddb2aa 100644
--- a/src/core/net/proxying_url_loader_factory_qt.cpp
+++ b/src/core/net/proxying_url_loader_factory_qt.cpp
@@ -20,15 +20,12 @@
 #include "url/url_util_qt.h"
 
 #include "api/qwebengineurlrequestinfo_p.h"
-#include "api/qwebengineurlresponseinfo_p.h"
 #include "type_conversion.h"
 #include "web_contents_adapter.h"
 #include "web_contents_adapter_client.h"
 #include "web_contents_view_qt.h"
 #include "net/resource_request_body_qt.h"
 
-#include <QtWebEngineCore/QWebEngineUrlResponseInfo>
-
 // originally based on aw_proxying_url_loader_factory.cc:
 // Copyright 2018 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
@@ -152,11 +149,6 @@ private:
     content::WebContents* webContents();
     QWebEngineUrlRequestInterceptor* getProfileInterceptor();
     QWebEngineUrlRequestInterceptor* getPageInterceptor();
-    QWebEngineUrlResponseInterceptor *getProfileResponseInterceptor();
-    QWebEngineUrlResponseInterceptor *getPageResponseInterceptor();
-
-    void interceptResponseHeaders(QWebEngineUrlResponseInterceptor *const interceptor,
-                                  net::HttpResponseHeaders *const responseHeadersPtr);
 
     QPointer<ProfileAdapter> profile_adapter_;
     const int frame_tree_node_id_;
@@ -263,59 +255,6 @@ QWebEngineUrlRequestInterceptor* InterceptedRequest::getPageInterceptor()
     return nullptr;
 }
 
-QWebEngineUrlResponseInterceptor* InterceptedRequest::getProfileResponseInterceptor()
-{
-    return profile_adapter_ ? profile_adapter_->responseInterceptor() : nullptr;
-}
-
-QWebEngineUrlResponseInterceptor* InterceptedRequest::getPageResponseInterceptor()
-{
-    if (auto wc = webContents()) {
-        auto view = static_cast<content::WebContentsImpl *>(wc)->GetView();
-        if (WebContentsAdapterClient *client = WebContentsViewQt::from(view)->client())
-            return client->webContentsAdapter()->responseInterceptor();
-    }
-    return nullptr;
-}
-
-void InterceptedRequest::interceptResponseHeaders(
-        QWebEngineUrlResponseInterceptor *const interceptor,
-        net::HttpResponseHeaders *const responseHeadersPtr)
-{
-    QHash<QByteArray, QByteArray> responseHeaders;
-    std::unordered_set<std::string> headersToRemove;
-    {
-        std::size_t iter = 0;
-        std::string name;
-        std::string value;
-        while (responseHeadersPtr->EnumerateHeaderLines(&iter, &name, &value)) {
-            responseHeaders.insert(QByteArray::fromStdString(name),
-                                   QByteArray::fromStdString(value));
-            headersToRemove.insert(name);
-        }
-    }
-
-    const QUrl requestUrl = QUrl::fromEncoded(QByteArray::fromStdString(request_.url.spec()));
-    const QMultiHash<QByteArray, QByteArray> requestHeaders =
-            [](const net::HttpRequestHeaders &headers) {
-                QMultiHash<QByteArray, QByteArray> result;
-                for (const auto &header : headers.GetHeaderVector()) {
-                    result.insert(QByteArray::fromStdString(header.key),
-                                  QByteArray::fromStdString(header.value));
-                }
-                return result;
-            }(request_.headers);
-
-    QWebEngineUrlResponseInfo info(requestUrl, requestHeaders, responseHeaders);
-    interceptor->interceptResponseHeaders(info);
-
-    if (info.d_ptr->isModified) {
-        responseHeadersPtr->RemoveHeaders(headersToRemove);
-        for (auto it = info.responseHeaders().cbegin(); it != info.responseHeaders().cend(); ++it)
-            responseHeadersPtr->AddHeader(it.key().toStdString(), it.value().toStdString());
-    }
-}
-
 void InterceptedRequest::Restart()
 {
     DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
@@ -473,12 +412,6 @@ void InterceptedRequest::ContinueAfterIntercept()
 
 void InterceptedRequest::OnReceiveResponse(network::mojom::URLResponseHeadPtr head, mojo::ScopedDataPipeConsumerHandle handle, absl::optional<mojo_base::BigBuffer> buffer)
 {
-    QWebEngineUrlResponseInterceptor *const responseInterceptor = getProfileResponseInterceptor()
-            ? getProfileResponseInterceptor()
-            : getPageResponseInterceptor();
-    if (responseInterceptor)
-        interceptResponseHeaders(responseInterceptor, head->headers.get());
-
     current_response_ = head.Clone();
 
     target_client_->OnReceiveResponse(std::move(head), std::move(handle), std::move(buffer));
diff --git a/src/core/profile_adapter.cpp b/src/core/profile_adapter.cpp
index 4747ac21b..42c419efc 100644
--- a/src/core/profile_adapter.cpp
+++ b/src/core/profile_adapter.cpp
@@ -191,16 +191,6 @@ void ProfileAdapter::setRequestInterceptor(QWebEngineUrlRequestInterceptor *inte
     m_requestInterceptor = interceptor;
 }
 
-QWebEngineUrlResponseInterceptor *ProfileAdapter::responseInterceptor()
-{
-    return m_responseInterceptor.data();
-}
-
-void ProfileAdapter::setResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor)
-{
-    m_responseInterceptor = interceptor;
-}
-
 void ProfileAdapter::addClient(ProfileAdapterClient *adapterClient)
 {
     m_clients.append(adapterClient);
diff --git a/src/core/profile_adapter.h b/src/core/profile_adapter.h
index a45a12e5c..ab4622a4b 100644
--- a/src/core/profile_adapter.h
+++ b/src/core/profile_adapter.h
@@ -27,7 +27,6 @@
 #include <QtWebEngineCore/qwebengineclientcertificatestore.h>
 #include <QtWebEngineCore/qwebenginecookiestore.h>
 #include <QtWebEngineCore/qwebengineurlrequestinterceptor.h>
-#include <QtWebEngineCore/qwebengineurlresponseinterceptor.h>
 #include <QtWebEngineCore/qwebengineurlschemehandler.h>
 #include "net/qrc_url_scheme_handler.h"
 
@@ -65,9 +64,6 @@ public:
     QWebEngineUrlRequestInterceptor* requestInterceptor();
     void setRequestInterceptor(QWebEngineUrlRequestInterceptor *interceptor);
 
-    QWebEngineUrlResponseInterceptor *responseInterceptor();
-    void setResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor);
-
     QList<ProfileAdapterClient*> clients() { return m_clients; }
     void addClient(ProfileAdapterClient *adapterClient);
     void removeClient(ProfileAdapterClient *adapterClient);
@@ -213,7 +209,6 @@ private:
     QWebEngineClientCertificateStore *m_clientCertificateStore = nullptr;
 #endif
     QPointer<QWebEngineUrlRequestInterceptor> m_requestInterceptor;
-    QPointer<QWebEngineUrlResponseInterceptor> m_responseInterceptor;
 
     QString m_dataPath;
     QString m_downloadPath;
diff --git a/src/core/web_contents_adapter.cpp b/src/core/web_contents_adapter.cpp
index 515e5d481..7e13064b3 100644
--- a/src/core/web_contents_adapter.cpp
+++ b/src/core/web_contents_adapter.cpp
@@ -1013,16 +1013,6 @@ QWebEngineUrlRequestInterceptor* WebContentsAdapter::requestInterceptor() const
     return m_requestInterceptor;
 }
 
-void WebContentsAdapter::setResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor)
-{
-    m_responseInterceptor = interceptor;
-}
-
-QWebEngineUrlResponseInterceptor *WebContentsAdapter::responseInterceptor() const
-{
-    return m_responseInterceptor;
-}
-
 #if QT_CONFIG(accessibility)
 QAccessibleInterface *WebContentsAdapter::browserAccessible()
 {
diff --git a/src/core/web_contents_adapter.h b/src/core/web_contents_adapter.h
index 6a4e296a1..807806973 100644
--- a/src/core/web_contents_adapter.h
+++ b/src/core/web_contents_adapter.h
@@ -211,8 +211,6 @@ public:
     void updateRecommendedState();
     void setRequestInterceptor(QWebEngineUrlRequestInterceptor *interceptor);
     QWebEngineUrlRequestInterceptor* requestInterceptor() const;
-    void setResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor);
-    QWebEngineUrlResponseInterceptor *responseInterceptor() const;
 
 private:
     Q_DISABLE_COPY(WebContentsAdapter)
@@ -254,7 +252,6 @@ private:
     LifecycleState m_recommendedState = LifecycleState::Active;
     bool m_inspector = false;
     QPointer<QWebEngineUrlRequestInterceptor> m_requestInterceptor;
-    QPointer<QWebEngineUrlResponseInterceptor> m_responseInterceptor;
 };
 
 } // namespace QtWebEngineCore
diff --git a/src/webenginequick/api/qquickwebengineprofile.cpp b/src/webenginequick/api/qquickwebengineprofile.cpp
index 50b92f9e9..93df0c866 100644
--- a/src/webenginequick/api/qquickwebengineprofile.cpp
+++ b/src/webenginequick/api/qquickwebengineprofile.cpp
@@ -935,19 +935,6 @@ void QQuickWebEngineProfile::setUrlRequestInterceptor(QWebEngineUrlRequestInterc
     d->profileAdapter()->setRequestInterceptor(interceptor);
 }
 
-/*!
-    Registers a response interceptor singleton \a interceptor to intercept URL responses.
-
-    The profile does not take ownership of the pointer.
-
-    \sa QWebEngineUrlResponseInterceptor
-*/
-void QQuickWebEngineProfile::setUrlResponseInterceptor(
-        QWebEngineUrlResponseInterceptor *interceptor)
-{
-    Q_D(QQuickWebEngineProfile);
-    d->profileAdapter()->setResponseInterceptor(interceptor);
-}
 
 /*!
     Returns the custom URL scheme handler register for the URL scheme \a scheme.
diff --git a/src/webenginequick/api/qquickwebengineprofile.h b/src/webenginequick/api/qquickwebengineprofile.h
index 751c2123e..29f5ca82f 100644
--- a/src/webenginequick/api/qquickwebengineprofile.h
+++ b/src/webenginequick/api/qquickwebengineprofile.h
@@ -18,7 +18,6 @@ class QWebEngineClientCertificateStore;
 class QWebEngineCookieStore;
 class QWebEngineNotification;
 class QWebEngineUrlRequestInterceptor;
-class QWebEngineUrlResponseInterceptor;
 class QWebEngineUrlSchemeHandler;
 class QQuickWebEngineScriptCollection;
 class QQuickWebEngineProfilePrivate;
@@ -91,7 +90,6 @@ public:
     QWebEngineCookieStore *cookieStore() const;
 
     void setUrlRequestInterceptor(QWebEngineUrlRequestInterceptor *interceptor);
-    void setUrlResponseInterceptor(QWebEngineUrlResponseInterceptor *interceptor);
 
     const QWebEngineUrlSchemeHandler *urlSchemeHandler(const QByteArray &) const;
     void installUrlSchemeHandler(const QByteArray &scheme, QWebEngineUrlSchemeHandler *);
diff --git a/tests/auto/core/CMakeLists.txt b/tests/auto/core/CMakeLists.txt
index 3dd8b720a..fca524254 100644
--- a/tests/auto/core/CMakeLists.txt
+++ b/tests/auto/core/CMakeLists.txt
@@ -6,7 +6,6 @@ add_subdirectory(qwebengineloadinginfo)
 add_subdirectory(qwebenginesettings)
 add_subdirectory(qwebengineglobalsettings)
 add_subdirectory(qwebengineurlrequestinterceptor)
-add_subdirectory(qwebengineurlresponseinterceptor)
 add_subdirectory(qwebengineurlrequestjob)
 add_subdirectory(origins)
 add_subdirectory(devtools)
diff --git a/tests/auto/core/qwebengineurlresponseinterceptor/CMakeLists.txt b/tests/auto/core/qwebengineurlresponseinterceptor/CMakeLists.txt
deleted file mode 100644
index 08a5b9699..000000000
--- a/tests/auto/core/qwebengineurlresponseinterceptor/CMakeLists.txt
+++ /dev/null
@@ -1,12 +0,0 @@
-# Copyright (C) 2023 The Qt Company Ltd.
-# SPDX-License-Identifier: BSD-3-Clause
-
-include(../../httpserver/httpserver.cmake)
-
-qt_internal_add_test(tst_qwebengineurlresponseinterceptor
-    SOURCES
-        tst_qwebengineurlresponseinterceptor.cpp
-    LIBRARIES
-        Qt::WebEngineCore
-        Test::HttpServer
-)
diff --git a/tests/auto/core/qwebengineurlresponseinterceptor/tst_qwebengineurlresponseinterceptor.cpp b/tests/auto/core/qwebengineurlresponseinterceptor/tst_qwebengineurlresponseinterceptor.cpp
deleted file mode 100644
index 6a46decf4..000000000
--- a/tests/auto/core/qwebengineurlresponseinterceptor/tst_qwebengineurlresponseinterceptor.cpp
+++ /dev/null
@@ -1,140 +0,0 @@
-// Copyright (C) 2023 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
-
-#include <QtTest/QtTest>
-#include <QtWebEngineCore/QWebEngineUrlResponseInterceptor>
-#include <QtWebEngineCore/QWebEngineProfile>
-#include <QtWebEngineCore/QWebEnginePage>
-#include <QtWebEngineCore/QWebEngineLoadingInfo>
-#include <QtWebEngineCore/QWebEngineUrlResponseInfo>
-
-#include <httpserver.h>
-#include <httpreqrep.h>
-
-class tst_QWebEngineUrlResponseInterceptor : public QObject
-{
-    Q_OBJECT
-
-public:
-    tst_QWebEngineUrlResponseInterceptor() { }
-    ~tst_QWebEngineUrlResponseInterceptor() { }
-
-public Q_SLOTS:
-    void init() { }
-    void cleanup() { }
-
-private Q_SLOTS:
-    void initTestCase() { }
-    void cleanupTestCase() { }
-    void interceptRequest_data();
-    void interceptRequest();
-};
-
-Q_LOGGING_CATEGORY(lc, "qt.webengine.tests")
-
-class Interceptor : public QWebEngineUrlResponseInterceptor
-{
-    Q_OBJECT
-
-    QUrl m_receivedRequestUrl;
-    QMultiHash<QByteArray, QByteArray> m_receivedRequestHeaders;
-
-public:
-    void interceptResponseHeaders(QWebEngineUrlResponseInfo &info) override
-    {
-        m_receivedRequestUrl = info.requestUrl();
-        m_receivedRequestHeaders = info.requestHeaders();
-        QHash<QByteArray, QByteArray> responseHeaders = info.responseHeaders();
-
-        responseHeaders.insert(QByteArrayLiteral("ADDEDHEADER"), QByteArrayLiteral("ADDEDVALUE"));
-        *(responseHeaders.find(QByteArrayLiteral("content-length"))) = QByteArrayLiteral("57");
-
-        info.setResponseHeaders(responseHeaders);
-    }
-
-    void getReceivedRequest(QUrl *receivedRequestUrl,
-                            QMultiHash<QByteArray, QByteArray> *receivedRequestHeaders)
-    {
-        *receivedRequestUrl = m_receivedRequestUrl;
-        *receivedRequestHeaders = m_receivedRequestHeaders;
-    }
-};
-
-void tst_QWebEngineUrlResponseInterceptor::interceptRequest_data()
-{
-    QTest::addColumn<bool>("withProfileInterceptor");
-    QTest::newRow("with profile interceptor") << true;
-    QTest::newRow("with page interceptor") << false;
-}
-
-void tst_QWebEngineUrlResponseInterceptor::interceptRequest()
-{
-    QFETCH(bool, withProfileInterceptor);
-
-    HttpServer httpServer;
-    QObject::connect(&httpServer, &HttpServer::newRequest, this, [&](HttpReqRep *rr) {
-        if (rr->requestPath() == QByteArrayLiteral("/okay.html")) {
-            rr->setResponseBody(QByteArrayLiteral(
-                    "<html><script>console.log('hello world js!');</script></html>"));
-            rr->sendResponse();
-        }
-    });
-    QVERIFY(httpServer.start());
-
-    const QUrl requestUrl = httpServer.url(QStringLiteral("/okay.html"));
-
-    Interceptor interceptor;
-    QWebEngineProfile profile;
-    QWebEnginePage page(&profile);
-    if (withProfileInterceptor)
-        profile.setUrlResponseInterceptor(&interceptor);
-    else
-        page.setUrlResponseInterceptor(&interceptor);
-
-    QSignalSpy loadSpy(&page, SIGNAL(loadFinished(bool)));
-
-    bool headersWereChanged = false;
-    QObject::connect(
-            &page, &QWebEnginePage::loadingChanged, this, [&](QWebEngineLoadingInfo loadingInfo) {
-                const QHash<QByteArray, QByteArray> responseHeaders = loadingInfo.responseHeaders();
-                bool contentLengthSizeChanged = false;
-                bool additionalHeaderAdded = false;
-                for (auto it = responseHeaders.constBegin(); it != responseHeaders.constEnd();
-                     ++it) {
-                    if (it.key() == QByteArrayLiteral("content-length")
-                        && it.value() == QByteArrayLiteral("57"))
-                        contentLengthSizeChanged = true;
-                    if (it.key() == QByteArrayLiteral("ADDEDHEADER")
-                        && it.value() == QByteArrayLiteral("ADDEDVALUE"))
-                        additionalHeaderAdded = true;
-                }
-
-                if (contentLengthSizeChanged && additionalHeaderAdded)
-                    headersWereChanged = true;
-            });
-
-    page.load(requestUrl);
-
-    QVERIFY(loadSpy.wait());
-
-    QUrl receivedRequestUrl;
-    QMultiHash<QByteArray, QByteArray> receivedRequestHeaders;
-    interceptor.getReceivedRequest(&receivedRequestUrl, &receivedRequestHeaders);
-
-    bool receivedRequestHeadersContainsQtWebEngine = false;
-    for (auto it = receivedRequestHeaders.cbegin(); it != receivedRequestHeaders.cend(); ++it) {
-        if (it.value().contains("QtWebEngine/")) {
-            receivedRequestHeadersContainsQtWebEngine = true;
-            break;
-        }
-    }
-
-    QVERIFY(headersWereChanged);
-    QCOMPARE_EQ(receivedRequestUrl, requestUrl);
-    QVERIFY(receivedRequestHeaders.size() != 0);
-    QVERIFY(receivedRequestHeadersContainsQtWebEngine);
-    QVERIFY(httpServer.stop());
-}
-
-QTEST_MAIN(tst_QWebEngineUrlResponseInterceptor)
-#include "tst_qwebengineurlresponseinterceptor.moc"