Bug: masking logic throws exception for Errors with read only properties

[rothfels]

Describe the bug

When I log.error any Error that has read only properties, tslog throws an exception:

.../node_modules/tslog/dist/cjs/BaseLogger.js:179
                                    o[prop] = keys.includes(this.settings?.maskValuesOfKeysCaseInsensitive !== true ? prop : prop.toLowerCase())
                                            ^

TypeError: Cannot assign to read only property '$response' of object 'ValidationException: ...'
    .../node_modules/tslog/dist/cjs/BaseLogger.js:179:45

To Reproduce
Steps to reproduce the behavior:

var tslog = require('tslog')
var logger = new tslog.Logger()

function createReadonlyError(message, property) {
  const error = new Error(message);
  Object.defineProperty(error, 'property', {
    value: property,
    writable: false,
    enumerable: true,
    configurable: false
  });
  return error;
}

var e = createReadonlyError('message', 'property')

logger.error(e)

Expected behavior

Don't throw exceptions when logging errors (or any object with readonly props for that matter)

Additional context

Using tslog@4.7.4

Node.js Version
18.14.0

OS incl. Version
macOS 12.5

[terehov]

Thank you. I'll fix it soon.

[terehov]

V4.7.5 is out.

[rothfels]

Thank you @terehov ! Appreciate the fast turnaround.