Fabio/tileserver-gl
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Very early CPU-cheap 304 based solely on last-modified

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Petr Sloup 2016-07-27 12:31:47 +08:00
parent 7efe22cf7f
commit 7accdfa7da
1 changed files with 7 additions and 0 deletions
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7
src/serve_rendered.js
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@ -309,6 +309,13 @@ module.exports = function(options, repo, params, id) {
};
app.get(tilePattern, function(req, res, next) {
var modifiedSince = req.get('if-modified-since'), cc = req.get('cache-control');
if (modifiedSince && (!cc || cc.indexOf('no-cache') == -1)) {
if (new Date(lastModified) <= new Date(modifiedSince)) {
return res.sendStatus(304);
}
}
var z = req.params.z | 0,
x = req.params.x | 0,
y = req.params.y | 0,