fix: normalize preferGET specified values to origin

- Normalize `preferGET` values to its origin as initial implementation
  (which expects user specified values are always sematntically correct
  "origin") is error-prone
- Change link to "origin" spec atReadme from developer.mozilla.org to
  url.spec.whatwg.org

Author: 0x6b

ReadMe.md

@@ -110,7 +110,7 @@ Example:
 
 ### preferGET
 
-An array of [origins](https://developer.mozilla.org/en-US/docs/Web/API/URL/origin) to lets the rule connect to the origin's URL by `GET` instead of default `HEAD` request.
+An array of [origins](https://url.spec.whatwg.org/#origin) to lets the rule connect to the origin's URL by `GET` instead of default `HEAD` request.
 
 Although the rule will fall back to `GET` method when `HEAD` request is failed (status code is not between 200 and 300), in order to shorten time to run your test, you can use this option when you are sure that target origin always returns 5xx for `HEAD` request.
 

src/no-dead-link.js

@@ -163,7 +163,9 @@ function reporter(context, options = {}) {
     }
 
     const method =
-      opts.preferGET.filter((origin) => getURLOrigin(uri) === origin).length > 0
+      opts.preferGET.filter(
+        (origin) => getURLOrigin(uri) === getURLOrigin(origin),
+      ).length > 0
         ? 'GET'
         : 'HEAD';
 

test/no-dead-link.js

@@ -65,6 +65,13 @@ tester.run('no-dead-link', rule, {
         preferGET: ['https://www.npmjs.com'],
       },
     },
+    {
+      text:
+        'should success with GET method whether the option is specific URL: [npm results for textlint](https://www.npmjs.com/search?q=textlint)',
+      options: {
+        preferGET: ['https://www.npmjs.com/search?q=textlint-rule'],
+      },
+    },
   ],
   invalid: [
     {