It appears that there may be an error within the zipped sequence provided
If the intention was to represent hexadecimal symbols, one would typically expect a combination of approximately 6 out of 16 characters, specifically "a" through "f". However, it seems that there are surprisingly few instances of these characters present.
Alternatively, if the sequence is supposed to form a string, it is highly improbable that all characters exclusively fall within the range of 0-9 and a-f!
To troubleshoot this issue, I recommend taking the following steps:
Confirm that the zipped output is truly correct by demonstrating its creation from the input string using zlib. Providing a screenshot as proof would be beneficial in this case.
Ensure that zlib is capable of unzipping the file. If zlib was used for compression but fails to unzip the data, then no further progress can be made. A screenshot depicting zlib successfully unzipping the file would offer reassurance.
Based on my assessment, it seems evident that the original zipped sequence may contain errors.
If the zippedData being utilized has already undergone compression, why is it being passed into fflate.strToU8, which is primarily designed for zipping strings?
For more information, please refer to the following link: https://github.com/101arrowz/fflate
Incorporating strings with fflate's string conversion API is straightforward:
const buf = fflate.strToU8('Hello world!');
// The default compression method employed is gzip
// Enhanced performance can be achieved by adjusting mem at the expense of memory usage
// Mem values span from 0 to 12, with 4 serving as the standard setting
const compressed = fflate.compressSync(buf, { level: 6, mem: 8 });
// For decompression purposes:
const decompressed = fflate.decompressSync(compressed);
const origText = fflate.strFromU8(decompressed);
console.log(origText); // Hello world!