255637 2023-04-18 19:18:36 -0700 Create a sub worker in worker is not supported 2023-05-24 09:29:45 -0700 1 1 1 Unclassified WebKit WebKit API WebKit Nightly Build Unspecified Unspecified RESOLVED DUPLICATE 255402 InRadar P2 Normal --- 1 jeason.xu93 webkit-unassigned ap webkit-bug-importer oldest_to_newest 1949639 0 jeason.xu93 2023-04-18 19:18:36 -0700 If I want to create a sub-worker in a woker, Worker api is not supported. // worker.js new Worker('sub-woker.js'); // main.js new Worker('worker.js'); worker.js will console.error, "can not find variable Worker" 1949728 1 ap 2023-04-19 07:42:27 -0700 We support nested workers since bug 22723. Are you testing with an older Safari version? 1951236 2 webkit-bug-importer 2023-04-25 19:19:19 -0700 <rdar://problem/108537000> 1957574 3 jeason.xu93 2023-05-24 01:14:19 -0700 (In reply to Alexey Proskuryakov from comment #1) > We support nested workers since bug 22723. Are you testing with an older > Safari version? I test this on lateset 16.4, The Worker api now is not undefined, however. The nested Worker handle can't be built successfully, seems the workes api implemention has bugs. Here is simple demo code for nested worker: // worker.js function Create_Worker() { let data = "let data = \"setInterval(function(){console.log(\\\"hello1\\\")},10)\"\n" + "workerhandle = new Worker(URL.createObjectURL(new Blob([data])));\n" + "console.error(\" typeofworker\",typeof\ Worker)\n"+ "setInterval(function () {\n" + " console.log(\"hello\")\n" + "},10)" workerhandle = new Worker(URL.createObjectURL(new Blob([data]))); } 1957641 4 ap 2023-05-24 09:29:45 -0700 Console logging not working is a known issue, tracked as bug 255402. Please test the actual effects of the scripts for now, presumably by posting messages from the nested worker. If you still see issues, please file a new bug - that way, it will be easier for people working on it to see what it is about without digging through old discussions. *** This bug has been marked as a duplicate of bug 255402 ***