[BUG] Doesn't work with mac10.13

Context:

• Playwright Version: 0.14.0-next.1587663620223
• Operating System: Mac 10.13.6 (17G2208)
• Node: 12.16.2

Code Snippet

const {chromium} = require('playwright');

(async () => {
  const browser = await chromium.launch();
  // ... 
})();

Describe the bug

When running the above simple example, I get this error:

Error: Unsupported platform for webkit: mac10.13
    at Object.assert (/Users/tim/code/example/node_modules/playwright-core/lib/helper.js:288:15)
    at Object.executablePath (/Users/tim/code/example/node_modules/playwright-core/lib/server/browserFetcher.js:130:14)
    at downloadOptionsFromENV (/Users/tim/code/example/node_modules/playwright-core/download-browser.js:45:36)
    at Object.<anonymous> (/Users/tim/code/example/node_modules/playwright/index.js:25:37)
    at Module._compile (internal/modules/cjs/loader.js:1156:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1176:10)
    at Module.load (internal/modules/cjs/loader.js:1000:32)
    at Function.Module._load (internal/modules/cjs/loader.js:899:14)
    at Module.require (internal/modules/cjs/loader.js:1042:19)
    at require (internal/modules/cjs/helpers.js:77:18)

As in my understanding, https://github.com/microsoft/playwright/pull/1549 should have fixed this, I guess it’s unintended behavior, therefore a bug.

[Pezhvak]

If anyone else ever comes across this, simply run:

PLAYWRIGHT_SKIP_BROWSER_DOWNLOAD=true npm i -D playwright

The problem is that webkit doesn’t support 10.13 anymore. skipping browser installation will fix the issue, however since i had ran the install command previously firefox and chromium was installed and failed on webkit, so skipping the browser installation second time worked since webkit won’t get downloaded.

[arjunattam]

@Pezhvak, v1.4.2 was just released with the fix