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author | tdro <tdro@noreply.example.com> | 2024-01-13 20:33:21 -0500 |
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committer | tdro <tdro@noreply.example.com> | 2024-01-13 20:33:21 -0500 |
commit | 8b53662def693a97ee5e0b5697841cf7859b6704 (patch) | |
tree | 91404ed8b418b5fd7eaf72eebc1e89549faaef9c /assets/js/index.js | |
parent | 30d33a9eedca8ae4b2e6082b915579c309f8b52c (diff) | |
download | canory-8b53662def693a97ee5e0b5697841cf7859b6704.tar.gz canory-8b53662def693a97ee5e0b5697841cf7859b6704.tar.bz2 canory-8b53662def693a97ee5e0b5697841cf7859b6704.zip |
static/js/update: Handle no drift
Some browsers can't read headers. Prepare _self
and add reset state
Diffstat (limited to 'assets/js/index.js')
-rw-r--r-- | assets/js/index.js | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/assets/js/index.js b/assets/js/index.js index 83d3943..ef35f63 100644 --- a/assets/js/index.js +++ b/assets/js/index.js @@ -93,7 +93,7 @@ }); })(); (function() { - function check(url, method, callback) { + function fetch(url, method, callback) { const http = new XMLHttpRequest(); http.onreadystatechange = function() { if (http.readyState === 4 && http.status === 200) { @@ -108,14 +108,16 @@ } function update() { const url = self.location.href.split("#")[0].split("?")[0]; - check(url, "HEAD", function(request) { + fetch(url, "HEAD", function(request) { const local = document.querySelector('meta[name="last-modified"]').content; const remote = request.getResponseHeader("last-modified") || ''; const modified = Date.parse(document.lastModified) !== Date.parse(remote); const drift = Date.parse(remote || local) - Date.parse(local); + let indicator = document.querySelector("a[data-update]"); + indicator.cloneNode(); + if (drift === 0) return; if (remote && modified) { - const indicator = document.querySelector("a[data-update]"); - check(url, "GET"); + fetch(url, "GET"); indicator.href = url; indicator.removeAttribute("id"); indicator.dataset.update = "refresh"; |