Added a missing ',' after the methods property

[dongido001]

What kind of change does this PR introduce? (check at least one)

• [ x] Bugfix
• Feature
• Code style update
• Provided documentation update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change? (check one)

• Yes
• [x ] No

If yes, please describe the impact and migration path for existing applications:

The PR fulfills these requirements:

• [x ] It's submitted to the dev branch and not the master branch
• When resolving a specific issue, it's referenced in the PR's title (e.g. fix: #xxx[,#xxx], where "xxx" is the issue number)
• [ x] It's been tested with all major browsers

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

Other information: