HTML5 audio says “live broadcast” in iOS when it's a static file

Question

For Windows Chrome (and probably many other browsers), this code works for serving an mp3 in an audio element:

/**
 * 
 * @param string $filenam         


        

Answer 1

Whoa, that was a very difficult problem to solve. (It took me days.)

And I learned that it wasn't just iOS that was having problems: Safari on Mac hadn't been working either.

Now I think everything works on every browser I've tested.

I'm really glad I found this example to follow.

Here is my answer:

/**
 * 
 * @param string $disk
 * @param string $filename
 * @return \Illuminate\Http\Response|\Illuminate\Contracts\Routing\ResponseFactory|\Symfony\Component\HttpFoundation\StreamedResponse
 */
public static function getMediaFile($disk, $filename) {
    $rangeHeader = request()->header('Range');
    $fileContents = Storage::disk($disk)->get($filename);
    $fullFilePath = Storage::disk($disk)->path($filename); //https://stackoverflow.com/a/49532280/470749
    $headers = ['Content-Type' => Storage::disk($disk)->mimeType($fullFilePath)];
    if ($rangeHeader) {
        return self::getResponseStream($disk, $fullFilePath, $fileContents, $rangeHeader, $headers);
    } else {
        $httpStatusCode = 200;
        return response($fileContents, $httpStatusCode, $headers);
    }
}

/**
 * 
 * @param string $disk
 * @param string $fullFilePath
 * @param string $fileContents
 * @param string $rangeRequestHeader
 * @param array  $responseHeaders
 * @return \Symfony\Component\HttpFoundation\StreamedResponse
 */
public static function getResponseStream($disk, $fullFilePath, $fileContents, $rangeRequestHeader, $responseHeaders) {
    $stream = Storage::disk($disk)->readStream($fullFilePath);
    $fileSize = strlen($fileContents);
    $fileSizeMinusOneByte = $fileSize - 1; //because it is 0-indexed. https://www.w3.org/Protocols/rfc2616/rfc2616-sec14.html#sec14.16
    list($param, $rangeHeader) = explode('=', $rangeRequestHeader);
    if (strtolower(trim($param)) !== 'bytes') {
        abort(400, "Invalid byte range request"); //Note, this is not how https://stackoverflow.com/a/29997555/470749 did it
    }
    list($from, $to) = explode('-', $rangeHeader);
    if ($from === '') {
        $end = $fileSizeMinusOneByte;
        $start = $end - intval($from);
    } elseif ($to === '') {
        $start = intval($from);
        $end = $fileSizeMinusOneByte;
    } else {
        $start = intval($from);
        $end = intval($to);
    }
    $length = $end - $start + 1;
    $httpStatusCode = 206;
    $responseHeaders['Content-Range'] = sprintf('bytes %d-%d/%d', $start, $end, $fileSize);
    $responseStream = response()->stream(function() use ($stream, $start, $length) {
        fseek($stream, $start, SEEK_SET);
        echo fread($stream, $length);
        fclose($stream);
    }, $httpStatusCode, $responseHeaders);
    return $responseStream;
}