octobercms/october · error · Error

The tab controls element should have the id attribute value.

Error message

The tab controls element should have the id attribute value.

What it means

Error "The tab controls element should have the id attribute value." thrown in octobercms/october.

Source

Thrown at modules/backend/assets/js/october/october.tabformexpandcontrols.js:27

        BaseProto = Base.prototype

    var TabFormExpandControls = function ($tabsControlElement, options) {
        this.$tabsControlElement = $tabsControlElement
        this.options = $.extend(TabFormExpandControls.DEFAULTS, typeof options == 'object' && options)
        this.tabsControlId = null

        Base.call(this)
        this.init()
    }

    TabFormExpandControls.prototype = Object.create(BaseProto)
    TabFormExpandControls.prototype.constructor = TabFormExpandControls

    TabFormExpandControls.prototype.init = function() {
        this.tabsControlId = this.$tabsControlElement.attr('id')

        if (!this.tabsControlId) {
            throw new Error('The tab controls element should have the id attribute value.')
        }

        this.registerHandlers()
    }

    TabFormExpandControls.prototype.dispose = function() {
        this.unregisterHandlers()

        this.$tabsControlElement = null

        BaseProto.dispose.call(this)
    }

    TabFormExpandControls.prototype.registerHandlers = function() {
        this.$tabsControlElement.on('initTab.oc.tab', this.proxy(this.initTab))
        this.$tabsControlElement.on('click', '[data-control="tabless-collapse-icon"]', this.proxy(this.tablessCollapseClicked))
        this.$tabsControlElement.on('click', '[data-control="primary-collapse-icon"]', this.proxy(this.primaryCollapseClicked))
    }

View on GitHub (pinned to b608633a7e)

When it happens

Trigger: Thrown at modules/backend/assets/js/october/october.tabformexpandcontrols.js:27 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of octobercms/october@b608633a7e (2026-08-21). Data as JSON: /api/errors/b97416a63a6a1419. Report an issue: GitHub.