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Merge da84d7b551 into ae4e99951a

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lin onetwo 2026-01-19 14:51:51 +00:00 • committed by GitHub
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boot/boot.js
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@ -2735,7 +2735,12 @@ $tw.hooks.invokeHook = function(hookName /*, value,... */) {
var args = Array.prototype.slice.call(arguments,1);
if($tw.utils.hop($tw.hooks.names,hookName)) {
for(var i = 0; i < $tw.hooks.names[hookName].length; i++) {
var previousValue = args[0];
args[0] = $tw.hooks.names[hookName][i].apply(null,args);
// Warn if a hook function forgets return when it is of pipe mode
if(args[0] === undefined && previousValue !== undefined) {
console.warn("Hook '" + hookName + "' handler at index " + i + " returned undefined. Expected the handler to return the value for the next hook in the chain. Handler function:", $tw.hooks.names[hookName][i]);
}
}
}
return args[0];