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fix: Prevent stale polling responses for web status (#1318)

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This commit is contained in:
Kroese
2026-07-23 04:00:12 +02:00
committed by GitHub
parent e14fd4b711
commit 222b5649b0
1 changed files with 41 additions and 8 deletions
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web/js/script.js
+41 -8
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@@ -1,15 +1,27 @@
var timer;
var request;
var booting = false;
var interval = 1000;
function abortRequest() {
if (!request) {
return false;
}
request.onreadystatechange = null;
request.abort();
request = null;
return true;
}
function getInfo() {
var url = "msg.html";
try {
if (request) {
request.abort();
}
abortRequest();
if (window.XMLHttpRequest) {
request = new XMLHttpRequest();
@@ -56,7 +68,10 @@ function processInfo() {
return true;
}
var msg = request.responseText;
var response = request;
request = null;
var msg = response.responseText;
if (msg == null || msg.length == 0) {
if (booting) {
@@ -68,9 +83,9 @@ function processInfo() {
return false;
}
var notFound = (request.status == 404);
var notFound = (response.status == 404);
if (request.status == 200) {
if (response.status == 200) {
if (msg.toLowerCase().indexOf("<html>") !== -1) {
notFound = true;
} else {
@@ -88,7 +103,7 @@ function processInfo() {
return true;
}
setError("Error: Received statuscode " + request.status);
setError("Error: Received statuscode " + response.status);
return false;
} catch (e) {
@@ -157,7 +172,9 @@ function setError(text) {
}
function schedule() {
setTimeout(getInfo, interval);
clearTimeout(timer);
timer = setTimeout(getInfo, interval);
}
function reload() {
@@ -179,11 +196,27 @@ function connect() {
switch (cmd) {
case "s":
var aborted = abortRequest();
processMsg(msg);
if (aborted &&
msg.toLowerCase().indexOf("href=") == -1) {
schedule();
}
break;
case "e":
if (abortRequest()) {
schedule();
}
setError(msg);
break;
default:
console.warn("Unknown event: " + cmd);
break;