| Index: Source/modules/serviceworkers/RequestInit.cpp
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| diff --git a/Source/modules/serviceworkers/RequestInit.cpp b/Source/modules/serviceworkers/RequestInit.cpp
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| index 9a952b750c34e812dd851f8f544d7a743c247dc5..fdb4b89f6ac7aeaf44997bd191fff83a5718d6ea 100644
 | 
| --- a/Source/modules/serviceworkers/RequestInit.cpp
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| +++ b/Source/modules/serviceworkers/RequestInit.cpp
 | 
| @@ -78,7 +78,7 @@ RequestInit::RequestInit(ExecutionContext* context, const Dictionary& options, E
 | 
|          }
 | 
|          blobData->setContentType(AtomicString("multipart/form-data; boundary=", AtomicString::ConstructFromLiteral) + httpBody->boundary().data());
 | 
|      } else if (body->IsString()) {
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| -        String stringValue(toScalarValueString(body, exceptionState));
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| +        String stringValue(toUSVString(body, exceptionState));
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|          blobData->appendText(stringValue, false);
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|          blobData->setContentType("text/plain;charset=UTF-8");
 | 
|      } else {
 | 
| 
 |