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Error Headers Unexpected char

See original GitHub issue

Fatal Exception: java.lang.IllegalArgumentException: Unexpected char 0xae at 47 in user-agent value: Dalvik/1.6.0 (Linux; U; Android 4.4.2; INCO AIR® Build/KOT49H)
       at okhttp3.Headers$Builder.checkNameAndValue(Headers.java:283)
       at okhttp3.Headers$Builder.add(Headers.java:233)
       at com.facebook.react.modules.network.NetworkingModule.extractHeaders(NetworkingModule.java:469)
       at com.facebook.react.modules.network.NetworkingModule.sendRequest(NetworkingModule.java:180)
       at java.lang.reflect.Method.invokeNative(Method.java)
       at java.lang.reflect.Method.invoke(Method.java:515)
       at com.facebook.react.bridge.BaseJavaModule$JavaMethod.invoke(BaseJavaModule.java:319)
       at com.facebook.react.bridge.NativeModuleRegistry$ModuleDefinition.call(NativeModuleRegistry.java:187)
       at com.facebook.react.bridge.NativeModuleRegistry.call(NativeModuleRegistry.java:62)
       at com.facebook.react.bridge.CatalystInstanceImpl$NativeModulesReactCallback.call(CatalystInstanceImpl.java:432)
       at com.facebook.react.bridge.queue.NativeRunnableDeprecated.run(NativeRunnableDeprecated.java)
       at android.os.Handler.handleCallback(Handler.java:808)
       at android.os.Handler.dispatchMessage(Handler.java:103)
       at com.facebook.react.bridge.queue.MessageQueueThreadHandler.dispatchMessage(MessageQueueThreadHandler.java:31)
       at android.os.Looper.loop(Looper.java:193)
       at com.facebook.react.bridge.queue.MessageQueueThreadImpl$3.run(MessageQueueThreadImpl.java:196)
       at java.lang.Thread.run(Thread.java:841)

Issue Analytics

State:
Created 7 years ago
Comments:18 (6 by maintainers)

Top GitHub Comments

2reactions

swankjessecommented, Aug 19, 2016

Strictly speaking this is a problem with Facebook’s NetworkingModule.java. The fix is a method like so:

  /** Returns {@code s} with control characters and non-ASCII characters replaced with '?'. */
  public static String toHumanReadableAscii(String s) {
    for (int i = 0, length = s.length(), c; i < length; i += Character.charCount(c)) {
      c = s.codePointAt(i);
      if (c > '\u001f' && c < '\u007f') continue;

      Buffer buffer = new Buffer();
      buffer.writeUtf8(s, 0, i);
      for (int j = i; j < length; j += Character.charCount(c)) {
        c = s.codePointAt(j);
        buffer.writeUtf8CodePoint(c > '\u001f' && c < '\u007f' ? c : '?');
      }
      return buffer.readUtf8();
    }
    return s;
  }

0reactions

shefengcommented, Nov 21, 2022

i also have this problem when my user-agent is ç¾å¾å¿è¯ 3.1 (iPhone; iOS 16.1.1; zh_CN)