From 8eff962cab608341a6f2fedc640a0e32d96f26e2 Mon Sep 17 00:00:00 2001 From: altaf-creator Date: Sun, 9 Nov 2025 11:15:19 +0800 Subject: pain --- .../web-vitals/src/lib/getNavigationEntry.ts | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 frontend-old/node_modules/web-vitals/src/lib/getNavigationEntry.ts (limited to 'frontend-old/node_modules/web-vitals/src/lib/getNavigationEntry.ts') diff --git a/frontend-old/node_modules/web-vitals/src/lib/getNavigationEntry.ts b/frontend-old/node_modules/web-vitals/src/lib/getNavigationEntry.ts new file mode 100644 index 0000000..19d18cf --- /dev/null +++ b/frontend-old/node_modules/web-vitals/src/lib/getNavigationEntry.ts @@ -0,0 +1,37 @@ +/* + * Copyright 2022 Google LLC + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * https://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +export const getNavigationEntry = (): PerformanceNavigationTiming | void => { + const navigationEntry = + self.performance && + performance.getEntriesByType && + performance.getEntriesByType('navigation')[0]; + + // Check to ensure the `responseStart` property is present and valid. + // In some cases no value is reported by the browser (for + // privacy/security reasons), and in other cases (bugs) the value is + // negative or is larger than the current page time. Ignore these cases: + // https://github.com/GoogleChrome/web-vitals/issues/137 + // https://github.com/GoogleChrome/web-vitals/issues/162 + // https://github.com/GoogleChrome/web-vitals/issues/275 + if ( + navigationEntry && + navigationEntry.responseStart > 0 && + navigationEntry.responseStart < performance.now() + ) { + return navigationEntry; + } +}; -- cgit v1.2.3