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guard creating prefixless data

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This commit is contained in:
Erik Little 2017-06-06 07:52:35 -04:00
parent cd3eb37ac8
commit 4b48bdd3e5
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GPG Key ID: 4930B7C5FBC1A69D
1 changed files with 5 additions and 1 deletions
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6
Source/SocketIO/Engine/SocketEngine.swift
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@ -223,7 +223,11 @@ public final class SocketEngine : NSObject, URLSessionDelegate, SocketEnginePoll
private func handleBase64(message: String) {
// binary in base64 string
let noPrefix = String(message[message.index(message.startIndex, offsetBy: 2)..<message.endIndex])!
guard let noPrefix = String(message[message.index(message.startIndex, offsetBy: 2)..<message.endIndex]) else {
client?.parseEngineBinaryData(Data())
return
}
if let data = Data(base64Encoded: noPrefix, options: .ignoreUnknownCharacters) {
client?.parseEngineBinaryData(data)