First commit.

Signed-off-by: Chen Xiao <abigwc@gmail.com>

client/node_modules/@braintree/sanitize-url/README.md

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+# sanitize-url
+
+## Installation
+
+```sh
+npm install -S @braintree/sanitize-url
+```
+
+## Usage
+
+```js
+var sanitizeUrl = require("@braintree/sanitize-url").sanitizeUrl;
+
+sanitizeUrl("https://example.com"); // 'https://example.com'
+sanitizeUrl("http://example.com"); // 'http://example.com'
+sanitizeUrl("www.example.com"); // 'www.example.com'
+sanitizeUrl("mailto:hello@example.com"); // 'mailto:hello@example.com'
+sanitizeUrl(
+  "https&#0000058//example.com",
+); // https://example.com
+
+sanitizeUrl("javascript:alert(document.domain)"); // 'about:blank'
+sanitizeUrl("jAvasCrIPT:alert(document.domain)"); // 'about:blank'
+sanitizeUrl(decodeURIComponent("JaVaScRiP%0at:alert(document.domain)")); // 'about:blank'
+// HTML encoded javascript:alert('XSS')
+sanitizeUrl(
+  "&#0000106&#0000097&#0000118&#0000097&#0000115&#0000099&#0000114&#0000105&#0000112&#0000116&#0000058&#0000097&#0000108&#0000101&#0000114&#0000116&#0000040&#0000039&#0000088&#0000083&#0000083&#0000039&#0000041",
+); // 'about:blank'
+```
+
+## Testing
+
+This library uses [Vitest](https://vitest.dev/). All testing dependencies
+will be installed upon `npm install` and the test suite can be executed with
+`npm test`. Running the test suite will also run lint checks upon exiting.
+
+    npm test
+
+To generate a coverage report, use `npm run coverage`.