fix(query): cast query values to strings (fix #2131) (#3232)

* fix(query): Fix query props should be casted into string (fix #2131) * Apply suggestions from code review * Update test/unit/specs/query.spec.js Co-authored-by: mohamed.gad <[email protected]> Co-authored-by: Eduardo San Martin Morote <[email protected]>
vuejs · Jun 18, 2020 · f0d9c2d · f0d9c2d
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diff --git a/src/util/query.js b/src/util/query.js
@@ -29,7 +29,8 @@ export function resolveQuery (
     parsedQuery = {}
   }
   for (const key in extraQuery) {
-    parsedQuery[key] = extraQuery[key]
+    const value = extraQuery[key]
+    parsedQuery[key] = Array.isArray(value) ? value.map(v => '' + v) : '' + value
   }
   return parsedQuery
 }

diff --git a/test/unit/specs/query.spec.js b/test/unit/specs/query.spec.js
@@ -19,6 +19,15 @@ describe('Query utils', () => {
         arr: ['1', null, '2']
       })
     })
+
+    it('should cast query values into string', () => {
+      const query = resolveQuery('foo=bar&foo=k', { baz: 1 })
+      expect(query.baz).toBe('1')
+    })
+    it('should cast query array values into string', () => {
+      const query = resolveQuery('foo=bar&foo=k', { baz: [1, '2'] })
+      expect(query.baz).toEqual(['1', '2'])
+    })
   })
 
   describe('stringifyQuery', () => {