diff --git a/src/templates/core/fetch/getResponseBody.hbs b/src/templates/core/fetch/getResponseBody.hbs
index 083cd16e..556c1f03 100644
--- a/src/templates/core/fetch/getResponseBody.hbs
+++ b/src/templates/core/fetch/getResponseBody.hbs
@@ -3,7 +3,8 @@ const getResponseBody = async (response: Response): Promise<any> => {
 		try {
 			const contentType = response.headers.get('Content-Type');
 			if (contentType) {
-				const isJSON = contentType.toLowerCase().startsWith('application/json');
+				const jsonTypes = ['application/json', 'application/problem+json']
+				const isJSON = jsonTypes.some(type => contentType.toLowerCase().startsWith(type));
 				if (isJSON) {
 					return await response.json();
 				} else {
diff --git a/src/templates/core/node/getResponseBody.hbs b/src/templates/core/node/getResponseBody.hbs
index 083cd16e..556c1f03 100644
--- a/src/templates/core/node/getResponseBody.hbs
+++ b/src/templates/core/node/getResponseBody.hbs
@@ -3,7 +3,8 @@ const getResponseBody = async (response: Response): Promise<any> => {
 		try {
 			const contentType = response.headers.get('Content-Type');
 			if (contentType) {
-				const isJSON = contentType.toLowerCase().startsWith('application/json');
+				const jsonTypes = ['application/json', 'application/problem+json']
+				const isJSON = jsonTypes.some(type => contentType.toLowerCase().startsWith(type));
 				if (isJSON) {
 					return await response.json();
 				} else {
diff --git a/src/templates/core/xhr/getResponseBody.hbs b/src/templates/core/xhr/getResponseBody.hbs
index 596733a8..84a662ef 100644
--- a/src/templates/core/xhr/getResponseBody.hbs
+++ b/src/templates/core/xhr/getResponseBody.hbs
@@ -3,7 +3,8 @@ const getResponseBody = (xhr: XMLHttpRequest): any => {
 		try {
 			const contentType = xhr.getResponseHeader('Content-Type');
 			if (contentType) {
-				const isJSON = contentType.toLowerCase().startsWith('application/json');
+				const jsonTypes = ['application/json', 'application/problem+json']
+				const isJSON = jsonTypes.some(type => contentType.toLowerCase().startsWith(type));
 				if (isJSON) {
 					return JSON.parse(xhr.responseText);
 				} else {
diff --git a/test/__snapshots__/index.spec.ts.snap b/test/__snapshots__/index.spec.ts.snap
index cb3405f2..f10b9282 100644
--- a/test/__snapshots__/index.spec.ts.snap
+++ b/test/__snapshots__/index.spec.ts.snap
@@ -463,7 +463,8 @@ const getResponseBody = async (response: Response): Promise<any> => {
         try {
             const contentType = response.headers.get('Content-Type');
             if (contentType) {
-                const isJSON = contentType.toLowerCase().startsWith('application/json');
+                const jsonTypes = ['application/json', 'application/problem+json']
+                const isJSON = jsonTypes.some(type => contentType.toLowerCase().startsWith(type));
                 if (isJSON) {
                     return await response.json();
                 } else {
@@ -3522,7 +3523,8 @@ const getResponseBody = async (response: Response): Promise<any> => {
         try {
             const contentType = response.headers.get('Content-Type');
             if (contentType) {
-                const isJSON = contentType.toLowerCase().startsWith('application/json');
+                const jsonTypes = ['application/json', 'application/problem+json']
+                const isJSON = jsonTypes.some(type => contentType.toLowerCase().startsWith(type));
                 if (isJSON) {
                     return await response.json();
                 } else {