raex_app/scripts/ios/fixFileTransfer.js

const fs = require("fs");
const path = require("path");
module.exports = function (context) {
    const projectRoot = context.opts.projectRoot;

    const cordovaCommon = context.requireCordovaModule("cordova-common");
    const { ConfigParser } = cordovaCommon;
    const appConfig = new ConfigParser(path.resolve(projectRoot, "config.xml"));

    let projectName = appConfig.name();

    const cdvFileTransfer = path.resolve(
        projectRoot,
        "platforms",
        "ios",
        projectName,
        "Plugins",
        "cordova-plugin-file-transfer",
        "CDVFileTransfer.m"
    );
    let content = fs.readFileSync(cdvFileTransfer).toString();
    let lines = content.split("\n");
    let index = lines.findIndex(
        (i) =>
            i.trim() ===
            "NSString* userAgent = [self.commandDelegate userAgent];"
    );
    if (index > -1) {
        lines.splice(index, 4);
    }
    fs.writeFileSync(cdvFileTransfer, lines.join("\n"));
};