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Fix stale UI after firmware updates (#5120)

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Add WEB_BUILD_TIME to html_ui.h and use it for ETag generation

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: DedeHai <6280424+DedeHai@users.noreply.github.com>
Co-authored-by: Aircoookie <21045690+Aircoookie@users.noreply.github.com>
This commit is contained in:
Copilot
2025-11-28 08:08:43 -05:00
committed by GitHub
parent fc25eb2c90
commit 75a7ed132a
2 changed files with 9 additions and 1 deletions
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8
tools/cdata.js
View File

@@ -38,6 +38,11 @@ const wledBanner = `
\t\t\x1b[36m build script for web UI \t\t\x1b[36m build script for web UI
\x1b[0m`; \x1b[0m`;
// Generate build timestamp as UNIX timestamp (seconds since epoch)
function generateBuildTime() {
return Math.floor(Date.now() / 1000);
}
const singleHeader = `/* const singleHeader = `/*
* Binary array for the Web UI. * Binary array for the Web UI.
* gzip is used for smaller size and improved speeds. * gzip is used for smaller size and improved speeds.
@@ -46,6 +51,9 @@ const singleHeader = `/*
* to find out how to easily modify the web UI source! * to find out how to easily modify the web UI source!
*/ */
// Automatically generated build time for cache busting (UNIX timestamp)
#define WEB_BUILD_TIME ${generateBuildTime()}
`; `;
const multiHeader = `/* const multiHeader = `/*

2
wled00/wled_server.cpp
View File

@@ -67,7 +67,7 @@ static bool inLocalSubnet(const IPAddress &client) {
*/ */
static void generateEtag(char *etag, uint16_t eTagSuffix) { static void generateEtag(char *etag, uint16_t eTagSuffix) {
sprintf_P(etag, PSTR("%7d-%02x-%04x"), VERSION, cacheInvalidate, eTagSuffix); sprintf_P(etag, PSTR("%u-%02x-%04x"), WEB_BUILD_TIME, cacheInvalidate, eTagSuffix);
} }
static void setStaticContentCacheHeaders(AsyncWebServerResponse *response, int code, uint16_t eTagSuffix = 0) { static void setStaticContentCacheHeaders(AsyncWebServerResponse *response, int code, uint16_t eTagSuffix = 0) {