diff --git a/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/extension/UserRequestConversionExtension.kt b/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/extension/UserRequestConversionExtension.kt
index ac0e30fd..b08a8cd8 100644
--- a/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/extension/UserRequestConversionExtension.kt
+++ b/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/extension/UserRequestConversionExtension.kt
@@ -215,7 +215,7 @@ fun HttpRequest.toApacheHttpRequest(): Pair<AsyncRequestProducer, Long> {
                 *(entity.trailers?.get()?.toTypedArray() ?: emptyArray())
             )
         }
-        is StringBody -> AsyncEntityProducers.create(body.value)
+        is StringBody -> AsyncEntityProducers.create(body.value, Charsets.UTF_8)
         null -> null
         else -> throw UnsupportedOperationException()
     }
diff --git a/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/model/HttpRequest.kt b/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/model/HttpRequest.kt
index 6531df1f..d81954e6 100644
--- a/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/model/HttpRequest.kt
+++ b/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/model/HttpRequest.kt
@@ -14,7 +14,7 @@ data class HttpRequest(
     val extra: Any? = null
 ) {
     fun getResolvedUri(): URI {
-        return URIBuilder(url)
+        return URIBuilder(url.replace(" ", "+"))
             .run {
                 var b = this
                 queryParameters.forEach {
@@ -23,5 +23,6 @@ data class HttpRequest(
                 b
             }
             .build()
+            .let { URI.create(it.toASCIIString()) }
     }
 }
diff --git a/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/ux/RequestEditorView.kt b/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/ux/RequestEditorView.kt
index f17149ac..2b032201 100644
--- a/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/ux/RequestEditorView.kt
+++ b/src/jvmMain/kotlin/com/sunnychung/application/multiplatform/hellohttp/ux/RequestEditorView.kt
@@ -138,7 +138,7 @@ fun RequestEditorView(
     val hasPayloadEditor = (request.application == ProtocolApplication.WebSocket
             || (request.application == ProtocolApplication.Grpc && currentGrpcMethod?.isClientStreaming == true)
             )
-    var selectedPayloadExampleId by rememberLast(request.id) { mutableStateOf(request.payloadExamples?.firstOrNull()?.id) }
+    var selectedPayloadExampleId by rememberLast(request.id, request.application) { mutableStateOf(request.payloadExamples?.firstOrNull()?.id) }
 
     val isEnableSendButton = when (connectionStatus.isConnectionActive()) {
         true -> true