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Skip soft reload if not needed.

This commit is contained in:
hackademix 2020-09-01 00:56:17 +02:00
parent 93bca61c92
commit 1d583e17f4
1 changed files with 11 additions and 2 deletions
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13
src/content/syncFetchPolicy.js
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@ -19,6 +19,7 @@
// Mozilla has already parsed the <head> element, we must take extra steps...
let softReloading = true;
let suppressedScripts = 0;
debug("Early parsing: preemptively suppressing events and script execution.");
try {
@ -57,7 +58,7 @@
}
let {readyState} = document;
debug("Readystate: %s, canScript: ", readyState, ns.canScript);
debug("Readystate: %s, %suppressedScripts %s, canScript = %s", readyState, suppressedScripts, ns.canScript);
if (!ns.canScript) {
for (let node of document.querySelectorAll("*")) {
let evAttrs = [...node.attributes].filter(a => a.name.toLowerCase().startsWith("on"));
@ -71,6 +72,13 @@
return;
}
if (suppressedScripts === 0 && readyState === "loading") {
// we don't care reloading, if no script has been suppressed
// and no readyState change has been fired yet
softReloading = false;
return;
}
let softReload = ev => {
let html = document.documentElement.outerHTML;
try {
@ -143,7 +151,8 @@
debug(e.type, e.target, softReloading); // DEV_ONLY
if (softReloading) {
e.preventDefault();
debug("Blocked early script", e.target);
++suppressedScripts;
debug(`Suppressed early script #${suppressedScripts}`, e.target);
} else {
removeEventListener(e.type, scriptSuppressor);
}