Github user sylvinus commented on the issue:
https://github.com/apache/spark/pull/9860
Might I suggest we have another look at this, to save users from breaking
their cmd-R keys? :-)
This JS snippet (which you can paste in the Chrome console to test) solves
2 of the issues mentioned here:
- Doesn't refresh if the Spark UI stopped to avoid losing results
- Doesn't refresh if the page is not currently visible
```
(function() {
function tinyxhr(url,cb,method,post,contenttype){var
c=url,a=cb,i=method,f=post,b=contenttype;var d,h;try{h=new
XMLHttpRequest()}catch(g){try{h=new
ActiveXObject("Msxml2.XMLHTTP")}catch(g){if(console){console.log("tinyxhr:
XMLHttpRequest not supported")}return
null}}d=setTimeout(function(){h.abort();a(new Error("tinyxhr: aborted by a
timeout"),"",h)},10000);h.onreadystatechange=function(){if(h.readyState!=4){return}clearTimeout(d);a(h.status!=200?new
Error("tinyxhr: server respnse status is
"+h.status):false,h.responseText,h)};h.open(i?i.toUpperCase():"GET",c,true);if(!f){h.send()}else{h.setRequestHeader("Content-type",b?b:"application/x-www-form-urlencoded");h.send(f)}};
function spark_refresh() {
var delay = 2000;
if (document.hidden) return setTimeout(spark_refresh, delay);
tinyxhr(window.location.toString(), function(error, html) {
if (error) return;
document.documentElement.innerHTML = html;
setTimeout(spark_refresh, delay);
}, "GET");
}
spark_refresh();
})();
```
The `delay` could be configured from a dropdown on the top right corner of
the page, which is relatively standard in such dashboards.
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