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Test polyfill.io Promise in a Worker
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <title>Test Promise.resolve() in a Worker</title> | |
| </head> | |
| <body> | |
| This is a simple smoke test for <code>Promise.resolve()</code> in a Worker. | |
| You should see an alert telling you if things worked or not. | |
| <script src="./main.js"></script> | |
| </body> | |
| </html> |
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| var worker = new Worker('./worker.js'); | |
| var id = 'Promise.resolve()'; | |
| worker.addEventListener('message', function(event) { | |
| var data = event.data; | |
| if (!data.success) { | |
| alert(data.id + ' failed: ' + data.message); | |
| } else { | |
| alert(data.id + ' worked'); | |
| } | |
| }); | |
| worker.postMessage({id: id}); |
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| importScripts('https://cdn.polyfill.io/v2/polyfill.min.js?features=Promise'); | |
| self.addEventListener('message', function(event) { | |
| // we could have multiple listeners for different event.data | |
| // instead we just do a simple smoke test for Promise.resolve() | |
| var id = event.data.id; | |
| try { | |
| Promise.resolve() | |
| .then(function() { | |
| self.postMessage({id: id, success: true}); | |
| }) | |
| .catch(function() { | |
| self.postMessage({id: id, success: false, message: 'resolve rejected!'}); | |
| }); | |
| } catch (error) { | |
| self.postMessage({id: id, success: false, message: error.message}); | |
| } | |
| }); |
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