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Fix blob response parsing for empty body on iOS #18547

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Fix blob response parsing for empty body on iOS #18547

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3 changes: 3 additions & 0 deletions Libraries/Blob/RCTBlobManager.mm
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Expand Up @@ -258,6 +258,9 @@ - (BOOL)canHandleNetworkingResponse:(NSString *)responseType

- (id)handleNetworkingResponse:(NSURLResponse *)response data:(NSData *)data
{
// An empty body will have nil for data, in this case we need to return
// an empty blob as per the XMLHttpRequest spec.
data = data ?: [NSData new];
return @{
@"blobId": [self store:data],
@"offset": @0,
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8 changes: 4 additions & 4 deletions Libraries/Network/RCTNetworking.mm
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Expand Up @@ -439,10 +439,6 @@ - (void)sendData:(NSData *)data
{
RCTAssertThread(_methodQueue, @"sendData: must be called on method queue");

if (data.length == 0) {
return;
}

id responseData = nil;
for (id<RCTNetworkingResponseHandler> handler in _responseHandlers) {
if ([handler canHandleNetworkingResponse:responseType]) {
Expand All @@ -452,6 +448,10 @@ - (void)sendData:(NSData *)data
}

if (!responseData) {
if (data.length == 0) {
return;
}

if ([responseType isEqualToString:@"text"]) {
// No carry storage is required here because the entire data has been loaded.
responseData = [RCTNetworking decodeTextData:data fromResponse:task.response withCarryData:nil];
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