CODEWITHSUNDEEP
javascriptsafarireferenceerror
sw0816
sw0816

Reputation: 47

JavaScript "ReferenceError: Can't find variable: Worker" in Safari when creating a Web Worker

I use a Web Worker in my JavaScript code, the class in which I use the Worker looks as follows:

class EnemyMoveCalculater {
    constructor() {
        this.worker = null;
    }

    startMoveCalculation(boardData, nextPlayer, jokerReady, enemyMoveHandlerCallback) {
        this.worker = new Worker('js/calculateEnemyMoves.js');
        this.worker.onmessage = function(e) {
            this.worker.terminate();
            this.worker = null;
            enemyMoveHandlerCallback(e.data);
        }.bind(this);
        this.worker.postMessage([boardData, nextPlayer, jokerReady]);
    }

    terminateMoveCalculation() {
        if (this.worker) this.worker.terminate();
    }
}

My Website is working in Firefox (for Windows and Android), Edge and Samsung Internet Browser. However, when the "startMoveCalculation" runs in Safari (Version 12.1.2) I get the following Error:

ReferenceError: Can't find variable: Worker

What could be the problem?

Upvotes: 2

Views: 2465

Answers (1)

TechyTaco
TechyTaco

Reputation: 166

Safari unfortunately as of now does not support spawning Web Workers from inside other Web Workers. The Worker may have to request the main thread to spawn another worker and manage communication between workers in this case.

Chrome seems to have Safari / WebKit down as "No Signal" of shipping this feature:

https://www.chromestatus.com/feature/6080438103703552

WebKit bug to follow:

https://bugs.webkit.org/show_bug.cgi?id=25212

Upvotes: 5

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