Remove Origin Trial code for Signed HTTP Exchange

This removes SignedHTTPExchangeOriginTrial feature, and its accompanied
SignedHTTPExchangeAcceptHeader feature which is used for the Accept
header opt-in.

Bug: 827939,887201
Change-Id: I0794b886715a63cb6ac43c37a0adaddeb31f2af8
Reviewed-on: https://chromium-review.googlesource.com/c/1481181Reviewed-by: Kinuko Yasuda <kinuko@chromium.org>
Reviewed-by: Tsuyoshi Horo <horo@chromium.org>
Reviewed-by: Kouhei Ueno <kouhei@chromium.org>
Commit-Queue: Kunihiko Sakamoto <ksakamoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634519}

content/browser/BUILD.gn

@@ -1825,8 +1825,6 @@ jumbo_source_set("browser") {
     "web_contents/web_drag_utils_win.h",
     "web_package/http_structured_header.cc",
     "web_package/http_structured_header.h",
-    "web_package/origins_list.cc",
-    "web_package/origins_list.h",
     "web_package/signed_exchange_cert_fetcher.cc",
     "web_package/signed_exchange_cert_fetcher.h",
     "web_package/signed_exchange_cert_fetcher_factory.cc",

content/browser/loader/navigation_url_loader_impl.cc

@@ -231,8 +231,7 @@ std::unique_ptr<network::ResourceRequest> CreateResourceRequest(
       request_info->begin_params->headers);
 
   std::string accept_value = network::kFrameAcceptHeader;
-  if (signed_exchange_utils::ShouldAdvertiseAcceptHeader(
-          url::Origin::Create(request_info->common_params.url))) {
+  if (signed_exchange_utils::IsSignedExchangeHandlingEnabled()) {
     DCHECK(!accept_value.empty());
     accept_value.append(kAcceptHeaderSignedExchangeSuffix);
   }
@@ -1104,25 +1103,6 @@ class NavigationURLLoaderImpl::URLLoaderRequestController
     url_loader_removed_headers_ = removed_headers;
     url_loader_modified_headers_ = modified_headers;
 
-    if (signed_exchange_utils::NeedToCheckRedirectedURLForAcceptHeader()) {
-      // Currently we send the SignedExchange accept header only for the limited
-      // origins when SignedHTTPExchangeOriginTrial feature is enabled without
-      // SignedHTTPExchange feature. We need to put the SignedExchange accept
-      // header on when redirecting to the origins in the OriginList of
-      // SignedHTTPExchangeAcceptHeader field trial, and need to remove it when
-      // redirecting to out of the OriginList.
-      std::string accept_value = network::kFrameAcceptHeader;
-      if (signed_exchange_utils::ShouldAdvertiseAcceptHeader(
-              url::Origin::Create(resource_request_->url))) {
-        DCHECK(!accept_value.empty());
-        accept_value.append(kAcceptHeaderSignedExchangeSuffix);
-      }
-      url_loader_modified_headers_.SetHeader(network::kAcceptHeader,
-                                             accept_value);
-      resource_request_->headers.SetHeader(network::kAcceptHeader,
-                                           accept_value);
-    }
-
     Restart();
   }
 

content/browser/loader/prefetch_url_loader.cc

@@ -50,9 +50,8 @@ PrefetchURLLoader::PrefetchURLLoader(
           std::move(signed_exchange_prefetch_metric_recorder)) {
   DCHECK(network_loader_factory_);
 
-  if (signed_exchange_utils::ShouldAdvertiseAcceptHeader(
-          url::Origin::Create(resource_request_.url))) {
-    // Set the SignedExchange accept header only for the limited origins.
+  if (signed_exchange_utils::IsSignedExchangeHandlingEnabled()) {
+    // Set the SignedExchange accept header.
     // (https://wicg.github.io/webpackage/draft-yasskin-http-origin-signed-responses.html#internet-media-type-applicationsigned-exchange).
     resource_request_.headers.SetHeader(
         network::kAcceptHeader, kSignedExchangeEnabledAcceptHeaderForPrefetch);
@@ -85,25 +84,9 @@ void PrefetchURLLoader::FollowRedirect(
     return;
   }
 
-  net::HttpRequestHeaders modified_request_headers_for_accept;
-  if (signed_exchange_utils::NeedToCheckRedirectedURLForAcceptHeader()) {
-    // Currently we send the SignedExchange accept header only for the limited
-    // origins when SignedHTTPExchangeOriginTrial feature is enabled without
-    // SignedHTTPExchange feature. So need to update the accept header by
-    // checking the new URL when redirected.
-    if (signed_exchange_utils::ShouldAdvertiseAcceptHeader(
-            url::Origin::Create(resource_request_.url))) {
-      modified_request_headers_for_accept.SetHeader(
-          network::kAcceptHeader,
-          kSignedExchangeEnabledAcceptHeaderForPrefetch);
-    } else {
-      modified_request_headers_for_accept.SetHeader(
-          network::kAcceptHeader, network::kDefaultAcceptHeader);
-    }
-  }
-
   DCHECK(loader_);
-  loader_->FollowRedirect(removed_headers, modified_request_headers_for_accept,
+  loader_->FollowRedirect(removed_headers,
+                          net::HttpRequestHeaders() /* modified_headers */,
                           base::nullopt);
 }
 

content/browser/web_package/origins_list.cc

-// Copyright 2018 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/browser/web_package/origins_list.h"
-
-#include "base/strings/string_split.h"
-#include "url/gurl.h"
-
-namespace content {
-namespace signed_exchange_utils {
-
-constexpr char kSubdomainMatchPrefix[] = "*.";
-
-OriginsList::OriginsList() = default;
-
-OriginsList::OriginsList(base::StringPiece str) {
-  std::vector<base::StringPiece> elements = base::SplitStringPiece(
-      str, ",", base::TRIM_WHITESPACE, base::SPLIT_WANT_NONEMPTY);
-
-  for (base::StringPiece element : elements) {
-    bool subdomain_match = false;
-    if (base::StartsWith(element, kSubdomainMatchPrefix,
-                         base::CompareCase::SENSITIVE)) {
-      subdomain_match = true;
-      element.remove_prefix(sizeof(kSubdomainMatchPrefix) - 1);
-    }
-    if (base::StartsWith(element,
-                         "https:", base::CompareCase::INSENSITIVE_ASCII)) {
-      LOG(ERROR) << "OriginsList entry should omit https scheme: \"" << element
-                 << "\"";
-      continue;
-    }
-
-    std::string url_str("https://");
-    element.AppendToString(&url_str);
-    GURL url(url_str);
-    if (!url.is_valid()) {
-      LOG(ERROR) << "Failed to parse an OriginsList entry to a valid Origin: \""
-                 << element << "\"";
-      continue;
-    }
-    DCHECK(url.SchemeIs("https"));
-
-    url::Origin origin = url::Origin::Create(url);
-    if (subdomain_match) {
-      subdomain_match_origins_.push_back(origin);
-    } else {
-      exact_match_origins_.insert(origin);
-    }
-  }
-}
-
-OriginsList::OriginsList(OriginsList&&) = default;
-OriginsList::~OriginsList() = default;
-
-bool OriginsList::IsEmpty() const {
-  return exact_match_origins_.empty() && subdomain_match_origins_.empty();
-}
-
-bool OriginsList::Match(const url::Origin& origin) const {
-  // OriginsList only contains HTTPS scheme origins.
-  if (origin.scheme() != url::kHttpsScheme) {
-    return false;
-  }
-
-  if (exact_match_origins_.find(origin) != exact_match_origins_.end()) {
-    return true;
-  }
-
-  for (const auto& subdomain_match_origin : subdomain_match_origins_) {
-    if (origin.DomainIs(subdomain_match_origin.host()) &&
-        origin.port() == subdomain_match_origin.port()) {
-      return true;
-    }
-  }
-
-  return false;
-}
-
-}  // namespace signed_exchange_utils
-}  // namespace content

content/browser/web_package/origins_list.h

-// Copyright 2018 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef CONTENT_BROWSER_WEB_PACKAGE_ORIGINS_LIST_H_
-#define CONTENT_BROWSER_WEB_PACKAGE_ORIGINS_LIST_H_
-
-#include <vector>
-
-#include "base/containers/flat_set.h"
-#include "base/strings/string_piece.h"
-#include "content/common/content_export.h"
-#include "url/origin.h"
-
-namespace content {
-namespace signed_exchange_utils {
-
-// OriginsList can query if a particular origin |Match|.
-// OriginsList can only match HTTPS origins.
-class CONTENT_EXPORT OriginsList {
- public:
-  OriginsList();
-
-  // Creates an OriginsList from comma-separated list of hosts.
-  //
-  // Entries starting with "*." will match with subdomains.
-  //
-  // For example, "example.com,*.google.com" will create an
-  // OriginsList that match exactly "example.com" but not its
-  // subdomains, and all subdomains of "google.com".
-  //
-  // Note: Entries should NOT start with "https://", but start from hostname.
-  explicit OriginsList(base::StringPiece str);
-
-  OriginsList(OriginsList&&);
-  ~OriginsList();
-
-  // Returns true when |this| has an empty list to match
-  // (i.e. no origins would match).
-  bool IsEmpty() const;
-
-  bool Match(const url::Origin& origin) const;
-
- private:
-  base::flat_set<url::Origin> exact_match_origins_;
-  std::vector<url::Origin> subdomain_match_origins_;
-};
-
-}  // namespace signed_exchange_utils
-}  // namespace content
-
-#endif  // CONTENT_BROWSER_WEB_PACKAGE_ORIGINS_LIST_H_

content/browser/web_package/origins_list_unittest.cc

-// Copyright 2018 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "content/browser/web_package/origins_list.h"
-
-#include "base/callback.h"
-#include "testing/gtest/include/gtest/gtest.h"
-#include "url/gurl.h"
-#include "url/origin.h"
-
-namespace content {
-namespace signed_exchange_utils {
-
-TEST(OriginsList, IsEmpty) {
-  OriginsList origins_list;
-  EXPECT_TRUE(origins_list.IsEmpty());
-}
-
-TEST(OriginsList, ExactMatch) {
-  OriginsList origins_list(
-      "example.com,test.example.com,https://invalid.entry,example.net:1234");
-
-  EXPECT_FALSE(origins_list.IsEmpty());
-
-  static constexpr const char* kShouldMatchList[] = {
-      "https://example.com", "https://test.example.com",
-      "https://example.net:1234",
-  };
-
-  for (const char* should_match : kShouldMatchList) {
-    EXPECT_TRUE(origins_list.Match(url::Origin::Create(GURL(should_match))))
-        << "OriginList should match url: " << should_match;
-  }
-
-  static constexpr const char* kShouldNotMatchList[] = {
-      "http://example.com",     "https://subdomain.example.com",
-      "https://notexample.com", "https://invalid.entry",
-      "https://example.net",    "https://example.net:5432",
-  };
-
-  for (const char* should_not_match : kShouldNotMatchList) {
-    EXPECT_FALSE(
-        origins_list.Match(url::Origin::Create(GURL(should_not_match))))
-        << "OriginList should not match url: " << should_not_match;
-  }
-}
-
-TEST(OriginsList, SubdomainMatch) {
-  OriginsList origins_list("*.example.com,*.example.net:1234");
-
-  EXPECT_FALSE(origins_list.IsEmpty());
-
-  static constexpr const char* kShouldMatchList[] = {
-      "https://example.com", "https://test.example.com",
-      "https://test.test2.example.com", "https://test.example.net:1234",
-  };
-
-  for (const char* should_match : kShouldMatchList) {
-    EXPECT_TRUE(origins_list.Match(url::Origin::Create(GURL(should_match))))
-        << "OriginList should match url: " << should_match;
-  }
-
-  static constexpr const char* kShouldNotMatchList[] = {
-      "http://example.com", "https://notexample.com",
-      "https://test.example.net", "https://test.example.net:5432",
-  };
-
-  for (const char* should_not_match : kShouldNotMatchList) {
-    EXPECT_FALSE(
-        origins_list.Match(url::Origin::Create(GURL(should_not_match))))
-        << "OriginList should not match url: " << should_not_match;
-  }
-}
-
-}  // namespace signed_exchange_utils
-}  // namespace content

content/browser/web_package/signed_exchange_utils.cc

@@ -6,14 +6,11 @@
 
 #include "base/command_line.h"
 #include "base/feature_list.h"
-#include "base/metrics/field_trial_params.h"
-#include "base/no_destructor.h"
 #include "base/strings/string_piece.h"
 #include "base/strings/string_util.h"
 #include "base/time/time.h"
 #include "base/trace_event/trace_event.h"
 #include "content/browser/loader/download_utils_impl.h"
-#include "content/browser/web_package/origins_list.h"
 #include "content/browser/web_package/signed_exchange_devtools_proxy.h"
 #include "content/browser/web_package/signed_exchange_error.h"
 #include "content/browser/web_package/signed_exchange_request_handler.h"
@@ -21,7 +18,6 @@
 #include "content/public/common/content_switches.h"
 #include "net/http/http_util.h"
 #include "services/network/public/cpp/resource_response.h"
-#include "third_party/blink/public/common/origin_trials/trial_token_validator.h"
 
 namespace content {
 namespace signed_exchange_utils {
@@ -37,62 +33,12 @@ void ReportErrorAndTraceEvent(
     devtools_proxy->ReportError(error_message, std::move(error_field));
 }
 
-namespace {
-
-OriginsList CreateAdvertiseAcceptHeaderOriginsList() {
-  std::string param = base::GetFieldTrialParamValueByFeature(
-      features::kSignedHTTPExchangeAcceptHeader,
-      features::kSignedHTTPExchangeAcceptHeaderFieldTrialParamName);
-  if (param.empty())
-    DLOG(ERROR) << "The Accept-SXG origins list param is empty.";
-
-  return OriginsList(param);
-}
-
-bool IsSignedHTTPExchangeEnabledByFlags() {
+bool IsSignedExchangeHandlingEnabled() {
   return base::FeatureList::IsEnabled(features::kSignedHTTPExchange) ||
          base::CommandLine::ForCurrentProcess()->HasSwitch(
              switches::kEnableExperimentalWebPlatformFeatures);
 }
 
-}  //  namespace
-
-bool NeedToCheckRedirectedURLForAcceptHeader() {
-  // When SignedHTTPExchange is enabled, the SignedExchange accept header must
-  // be sent to all origins. So we don't need to check the redirected URL.
-  return !IsSignedHTTPExchangeEnabledByFlags() &&
-         base::FeatureList::IsEnabled(
-             features::kSignedHTTPExchangeOriginTrial) &&
-         base::FeatureList::IsEnabled(
-             features::kSignedHTTPExchangeAcceptHeader);
-}
-
-bool ShouldAdvertiseAcceptHeader(const url::Origin& origin) {
-  // When SignedHTTPExchange is enabled, we must send the SignedExchange accept
-  // header to all origins.
-  if (IsSignedHTTPExchangeEnabledByFlags())
-    return true;
-  // When SignedHTTPExchangeOriginTrial is not enabled or
-  // SignedHTTPExchangeAcceptHeader is not enabled, we must not send the
-  // SignedExchange accept header.
-  if (!base::FeatureList::IsEnabled(features::kSignedHTTPExchangeOriginTrial) ||
-      !base::FeatureList::IsEnabled(
-          features::kSignedHTTPExchangeAcceptHeader)) {
-    return false;
-  }
-
-  // |origins_list| is initialized in a thread-safe manner.
-  // Querying OriginsList::Match() should be safe since it's read-only access.
-  static base::NoDestructor<OriginsList> origins_list(
-      CreateAdvertiseAcceptHeaderOriginsList());
-  return origins_list->Match(origin);
-}
-
-bool IsSignedExchangeHandlingEnabled() {
-  return IsSignedHTTPExchangeEnabledByFlags() ||
-         base::FeatureList::IsEnabled(features::kSignedHTTPExchangeOriginTrial);
-}
-
 bool ShouldHandleAsSignedHTTPExchange(
     const GURL& request_url,
     const network::ResourceResponseHead& head) {
@@ -107,15 +53,7 @@ bool ShouldHandleAsSignedHTTPExchange(
                                    head.mime_type)) {
     return false;
   }
-  if (IsSignedHTTPExchangeEnabledByFlags())
-    return true;
-  if (!base::FeatureList::IsEnabled(features::kSignedHTTPExchangeOriginTrial))
-    return false;
-  std::unique_ptr<blink::TrialTokenValidator> validator =
-      std::make_unique<blink::TrialTokenValidator>();
-  return validator->RequestEnablesFeature(
-      request_url, head.headers.get(),
-      features::kSignedHTTPExchangeOriginTrial.name, base::Time::Now());
+  return IsSignedExchangeHandlingEnabled();
 }
 
 base::Optional<SignedExchangeVersion> GetSignedExchangeVersion(

content/browser/web_package/signed_exchange_utils.h

@@ -8,17 +8,12 @@
 #include <string>
 
 #include "base/optional.h"
-#include "content/browser/web_package/origins_list.h"
 #include "content/browser/web_package/signed_exchange_consts.h"
 #include "content/browser/web_package/signed_exchange_error.h"
 #include "content/browser/web_package/signed_exchange_signature_verifier.h"
 #include "content/common/content_export.h"
 #include "url/gurl.h"
 
-namespace url {
-class Origin;
-}  // namespace url
-
 namespace network {
 struct ResourceResponseHead;
 }  // namespace network
@@ -47,23 +42,11 @@ void ReportErrorAndTraceEvent(
     base::Optional<SignedExchangeError::FieldIndexPair> error_field =
         base::nullopt);
 
-// Returns true when SignedHTTPExchange feature is NOT enabled and
-// SignedHTTPExchangeOriginTrial and SignedHTTPExchangeAcceptHeader features are
-// enabled.
-bool NeedToCheckRedirectedURLForAcceptHeader();
-
-// Returns true if Accept headers should be sent with
-// "application/signed-exchange".
-CONTENT_EXPORT bool ShouldAdvertiseAcceptHeader(const url::Origin& origin);
-
-// Returns true when SignedHTTPExchange feature or SignedHTTPExchangeOriginTrial
-// feature is enabled.
-bool IsSignedExchangeHandlingEnabled();
+// Returns true when SignedHTTPExchange feature is enabled.
+CONTENT_EXPORT bool IsSignedExchangeHandlingEnabled();
 
 // Returns true when the response should be handled as a signed exchange by
-// checking the mime type and the feature flags. When SignedHTTPExchange feature
-// is not enabled and SignedHTTPExchangeOriginTrial feature is enabled, this
-// method also checks the Origin Trial header.
+// checking the mime type and the feature flags.
 bool ShouldHandleAsSignedHTTPExchange(
     const GURL& request_url,
     const network::ResourceResponseHead& head);

content/public/common/content_features.cc

@@ -443,17 +443,6 @@ const base::Feature kSignedExchangeReportingForDistributors{
 const base::Feature kSignedHTTPExchange{"SignedHTTPExchange",
                                         base::FEATURE_ENABLED_BY_DEFAULT};
 
-// Send "Accept: application/signed-exchange" header to origins who opt-in.
-const base::Feature kSignedHTTPExchangeAcceptHeader{
-    "SignedHTTPExchangeAcceptHeader", base::FEATURE_DISABLED_BY_DEFAULT};
-// Field trial parameter containing the list of origins that opted-in to receive
-// "Accept: application/signed-exchange" header.
-const char kSignedHTTPExchangeAcceptHeaderFieldTrialParamName[] = "OriginsList";
-
-// Origin Trial of Origin-Signed HTTP Exchanges (for WebPackage Loading)
-const base::Feature kSignedHTTPExchangeOriginTrial{
-    "SignedHTTPExchangeOriginTrial", base::FEATURE_ENABLED_BY_DEFAULT};
-
 // Controls whether SpareRenderProcessHostManager tries to always have a warm
 // spare renderer process around for the most recently requested BrowserContext.
 // This feature is only consulted in site-per-process mode.

content/public/common/content_features.h

@@ -104,10 +104,6 @@ CONTENT_EXPORT extern const base::Feature kSharedArrayBuffer;
 CONTENT_EXPORT extern const base::Feature
     kSignedExchangeReportingForDistributors;
 CONTENT_EXPORT extern const base::Feature kSignedHTTPExchange;
-CONTENT_EXPORT extern const base::Feature kSignedHTTPExchangeAcceptHeader;
-CONTENT_EXPORT extern const char
-    kSignedHTTPExchangeAcceptHeaderFieldTrialParamName[];
-CONTENT_EXPORT extern const base::Feature kSignedHTTPExchangeOriginTrial;
 CONTENT_EXPORT extern const base::Feature kSkipBrowserTouchFilter;
 CONTENT_EXPORT extern const char kSkipBrowserTouchFilterTypeParamName[];
 CONTENT_EXPORT extern const char

content/test/BUILD.gn

@@ -1681,7 +1681,6 @@ test("content_unittests") {
     "../browser/web_contents/web_drag_dest_mac_unittest.mm",
     "../browser/web_contents/web_drag_source_mac_unittest.mm",
     "../browser/web_package/http_structured_header_unittest.cc",
-    "../browser/web_package/origins_list_unittest.cc",
     "../browser/web_package/signed_exchange_cert_fetcher_unittest.cc",
     "../browser/web_package/signed_exchange_certificate_chain_unittest.cc",
     "../browser/web_package/signed_exchange_envelope_unittest.cc",

third_party/blink/web_tests/VirtualTestSuites

@@ -632,18 +632,6 @@
     "base": "external/wpt/signed-exchange",
     "args": ["--enable-features=NetworkService"]
   },
-  {
-    "prefix": "sxg-origin-trial",
-    "base": "http/tests/loading/sxg",
-    "args": ["--stable-release-mode",
-             "--enable-features=SignedHTTPExchangeOriginTrial"]
-  },
-  {
-    "prefix": "sxg-origin-trial-with-network-service",
-    "base": "http/tests/loading/sxg",
-    "args": ["--stable-release-mode",
-             "--enable-features=SignedHTTPExchangeOriginTrial,NetworkService"]
-  },
   {
     "prefix": "disabled-service-worker-servicification",
     "base": "http/tests/serviceworker",

third_party/blink/web_tests/http/tests/loading/sxg/resources/sxg-location-origin-trial.php

-<?php
-header('HTTP/1.0 200 OK');
-// generate_token.py http://127.0.0.1:8000 SignedHTTPExchangeOriginTrial --expire-timestamp=2000000000
-header("Origin-Trial: AqVs+066F+i9lgx2N0bCs5B31heTh9PJOfVM00yDS34V3FqBzWCuI3VKOpHPDeeujnaqJRVPHG8q+jBXjPNoLwkAAABleyJvcmlnaW4iOiAiaHR0cDovLzEyNy4wLjAuMTo4MDAwIiwgImZlYXR1cmUiOiAiU2lnbmVkSFRUUEV4Y2hhbmdlT3JpZ2luVHJpYWwiLCAiZXhwaXJ5IjogMjAwMDAwMDAwMH0=");
-header("Content-Type: application/signed-exchange;v=b3");
-$name = 'sxg-location.sxg';
-$fp = fopen($name, 'rb');
-header("Content-Length: " . filesize($name));
-fpassthru($fp);
-?>

third_party/blink/web_tests/http/tests/loading/sxg/sxg-location-origin-trial-redirect.html

-<!DOCTYPE html>
-<title>Location of SignedHTTPExchange with Origin-Trial header after redirect</title>
-<script src="../../resources/testharness.js"></script>
-<script src="../../resources/testharnessreport.js"></script>
-<script src="./resources/sxg-util.js"></script>
-<body>
-<script>
-promise_test(async (t) => {
-  await waitUntilDidFinishLoadForFrame;
-  const url =
-      'http://localhost:8000/resources/redirect.php?url=' +
-      encodeURIComponent(
-        'http://127.0.0.1:8000/loading/sxg/resources/sxg-location-origin-trial.php');
-  const message = await openSXGInIframeAndWaitForMessage(t, url);
-  assert_equals(message.location, 'https://127.0.0.1:8443/loading/sxg/resources/inner-url.html');
-  assert_false(message.is_fallback);
-}, 'Location of SignedHTTPExchange with Origin-Trial header after redirect');
-</script>
-</body>

third_party/blink/web_tests/http/tests/loading/sxg/sxg-location-origin-trial.html

-<!DOCTYPE html>
-<title>Location of SignedHTTPExchange with Origin-Trial header</title>
-<script src="../../resources/testharness.js"></script>
-<script src="../../resources/testharnessreport.js"></script>
-<script src="./resources/sxg-util.js"></script>
-<body>
-<script>
-promise_test(async (t) => {
-  await waitUntilDidFinishLoadForFrame;
-
-  const message = await openSXGInIframeAndWaitForMessage(t, 'resources/sxg-location-origin-trial.php');
-  assert_equals(message.location, 'https://127.0.0.1:8443/loading/sxg/resources/inner-url.html');
-  assert_false(message.is_fallback);
-}, 'Location of SignedHTTPExchange with Origin-Trial header');
-</script>
-</body>

third_party/blink/web_tests/virtual/sxg-origin-trial-with-network-service/http/tests/loading/sxg/README.txt

-This directory is for testing the SignedHTTPExchangeOriginTrial feature.
-
-This suite runs the tests with --stable-release-mode, with which we
-run tests with only stable feature (no experiments).

third_party/blink/web_tests/virtual/sxg-origin-trial/http/tests/loading/sxg/README.txt

-This directory is for testing the SignedHTTPExchangeOriginTrial feature.
-
-This suite runs the tests with --stable-release-mode, with which we
-run tests with only stable feature (no experiments).