[all] Drop IE11 support (#3756)

* Remove sauce-ie11 workflow * Remove sauce-ie11 browser preset * Remove ie11 and edge launcher examples in starter kits
lit · Mar 24, 2023 · f06f797 · f06f797
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commit f06f797
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diff --git a/.changeset/wild-rabbits-pay.md b/.changeset/wild-rabbits-pay.md
@@ -0,0 +1,10 @@
+---
+'@lit/lit-starter-js': major
+'@lit/lit-starter-ts': major
+'lit-html': major
+'lit': major
+'lit-element': major
+'@lit/reactive-element': major
+---
+
+Drop IE11 support
diff --git a/.github/workflows/sauce-ie11.yaml b/.github/workflows/sauce-ie11.yaml
diff --git a/packages/lit-starter-js/web-test-runner.config.js b/packages/lit-starter-js/web-test-runner.config.js
@@ -61,17 +61,13 @@ const browsers = {
   // ===========
   // chromium: sauceLabsLauncher({browserName: 'chrome', browserVersion: 'latest', platformName: 'Windows 10'}),
   // firefox: sauceLabsLauncher({browserName: 'firefox', browserVersion: 'latest', platformName: 'Windows 10'}),
-  // edge: sauceLabsLauncher({browserName: 'MicrosoftEdge', browserVersion: 'latest', platformName: 'Windows 10'}),
-  // ie11: sauceLabsLauncher({browserName: 'internet explorer', browserVersion: '11.0', platformName: 'Windows 10'}),
   // safari: sauceLabsLauncher({browserName: 'safari', browserVersion: 'latest', platformName: 'macOS 10.15'}),
 
   // Uncomment example launchers for running on Sauce Labs
   // ===========
   // chromium: browserstackLauncher({browserName: 'Chrome', os: 'Windows', os_version: '10'}),
   // firefox: browserstackLauncher({browserName: 'Firefox', os: 'Windows', os_version: '10'}),
   // edge: browserstackLauncher({browserName: 'MicrosoftEdge', os: 'Windows', os_version: '10'}),
-  // ie11: browserstackLauncher({browserName: 'IE', browser_version: '11.0', os: 'Windows', os_version: '10'}),
-  // safari: browserstackLauncher({browserName: 'Safari', browser_version: '14.0', os: 'OS X', os_version: 'Big Sur'}),
 };
 
 // Prepend BROWSERS=x,y to `npm run test` to run a subset of browsers

diff --git a/packages/lit-starter-ts/web-test-runner.config.js b/packages/lit-starter-ts/web-test-runner.config.js
@@ -61,16 +61,12 @@ const browsers = {
   // ===========
   // chromium: sauceLabsLauncher({browserName: 'chrome', browserVersion: 'latest', platformName: 'Windows 10'}),
   // firefox: sauceLabsLauncher({browserName: 'firefox', browserVersion: 'latest', platformName: 'Windows 10'}),
-  // edge: sauceLabsLauncher({browserName: 'MicrosoftEdge', browserVersion: 'latest', platformName: 'Windows 10'}),
-  // ie11: sauceLabsLauncher({browserName: 'internet explorer', browserVersion: '11.0', platformName: 'Windows 10'}),
   // safari: sauceLabsLauncher({browserName: 'safari', browserVersion: 'latest', platformName: 'macOS 10.15'}),
 
   // Uncomment example launchers for running on Sauce Labs
   // ===========
   // chromium: browserstackLauncher({browserName: 'Chrome', os: 'Windows', os_version: '10'}),
   // firefox: browserstackLauncher({browserName: 'Firefox', os: 'Windows', os_version: '10'}),
-  // edge: browserstackLauncher({browserName: 'MicrosoftEdge', os: 'Windows', os_version: '10'}),
-  // ie11: browserstackLauncher({browserName: 'IE', browser_version: '11.0', os: 'Windows', os_version: '10'}),
   // safari: browserstackLauncher({browserName: 'Safari', browser_version: '14.0', os: 'OS X', os_version: 'Big Sur'}),
 };
 

diff --git a/packages/tests/src/web-test-runner.config.ts b/packages/tests/src/web-test-runner.config.ts
@@ -39,9 +39,7 @@ const browserPresets = {
     'sauce:Windows 10/Firefox@102', // Current ESR. See: https://wiki.mozilla.org/Release_Management/Calendar
     'sauce:Windows 10/Chrome@latest-2',
     'sauce:macOS 11/Safari@latest',
-    // 'sauce:Windows 10/MicrosoftEdge@18', // needs globalThis polyfill
   ],
-  'sauce-ie11': ['sauce:Windows 10/Internet Explorer@11'],
 };
 
 let sauceLauncher: ReturnType<typeof createSauceLabsLauncher>;
@@ -257,10 +255,6 @@ const config: TestRunnerConfig = {
     },
   ],
   browserStartTimeout: 60000, // default 30000
-  // For ie11 where tests run more slowly, this timeout needs to be long
-  // enough so that blocked tests have time to wait for all previous test files
-  // to run to completion.
-  testsStartTimeout: 60000 * 10, // default 120000
   testsFinishTimeout: 600000, // default 20000
   testFramework: {
     // https://mochajs.org/api/mocha