fix: add isFSA check to isError (#99)

pwNN · JaKXz · commit b83c9ae3a0a5 · 2018-01-17T10:37:31.000-05:00
diff --git a/src/index.js b/src/index.js
@@ -12,7 +12,7 @@ export function isFSA(action) {
 }
 
 export function isError(action) {
-  return action.error === true;
+  return isFSA(action) && action.error === true;
 }
 
 function isValidKey(key) {

Original file line number	Diff line number	Diff line change
`@@ -12,7 +12,7 @@ export function isFSA(action) {`
`12`	`12`	`}`
`13`	`13`
`14`	`14`	`export function isError(action) {`
`15`		`- return action.error === true;`
	`15`	`+ return isFSA(action) && action.error === true;`
`16`	`16`	`}`
`17`	`17`
`18`	`18`	`function isValidKey(key) {`