Fixes

• Improve activeWhen to support query-strings in URL (#594 #593 via @Sauloxd)
• Fix types for parcel props (#596 via @kuitos)
• Add console warning when single-spa is loaded twice on the same page. (#577)

Maintenance

• Fix Travis CI badge in Readme (https://github.com/single-spa/single-spa/commit/8fdbb93f73deb79a38c4eabeecbd78f75b3e5cd3)
• Adding Sponsor button for Github Sponsors and Open Collective. (#582)

Fixes

• Fix bug with delayed call to start() where applications would remain unmounted. (#573 #555)

Fixes

• Small ie11 fixes, and adding lint safe guards for ie11 (#559 via @Sauloxd)
• fix(activeWhen): activeWhen with string literal should be exact match (#565 via @kuitos)

import { registerApplication, checkActivityFunctions } from 'single-spa'

registerApplication({
  name: "app1",
  app: () => System.import('app1'),
  activeWhen: '/app1'
})

// Both 5.5.1 and 5.5.2
checkActivityFunctions(new URL('http://localhost:8080/app1')) // ['app1']
checkActivityFunctions(new URL('http://localhost:8080/app1/sub')) // ['app1']

// With 5.5.1, single-spa did not require the location to have a slash after the prefix
checkActivityFunctions(new URL('http://localhost:8080/app1WithExtra')) // ['app1']

// Changed with 5.5.2 - single-spa now requires the location to have a slash after the prefix
checkActivityFunctions(new URL('http://localhost:8080/app1WithExtra')) // []

Maintenance

• Fix Github issue template (#567 via @kuitos)

Fixes

• Change includes to indexOf for IE11 support. (#558)

Features

• Allow calling checkActivityFunctions without location object as an argument. This is already in the documentation, but wasn't implemented (#544)
• New single-spa:before-app-change and single-spa:before-no-app-change events. (#545 #547)

Fixes

• The CustomEvent.detail for single-spa:before-routing-event and single-spa:before-mount-routing-event now shows the new statuses for apps, meaning the status that the app will be in after the routing event finishes. Previously the current, older status was being reported as the new status. (#547)

Performance

• Refactor: only call activity functions one time per reroute. This is better for performance because each URL reroute results in less work. (#546)

Maintenance

• update tagline and description (#549)
• Add npm downloads badge (#542)

Patches

• Removing errant copyright text within the license. Single-spa is still MIT license (https://github.com/single-spa/single-spa/pull/432)
• Changing all links to point to updated Github organization name, instead of CanopyTax (https://github.com/single-spa/single-spa/pull/430)

Features

• Support short-circuited, partial rerouting. This occurs when the URL changes in the middle of a single reroute (https://github.com/single-spa/single-spa/pull/529 via @arturovt)
• Add extra properties to PopStateEvents that originate within single-spa - Documentation (https://github.com/single-spa/single-spa/pull/532 via @jamesopti)
• Custom props provided to applications may now be passed in as a function that returns an object - Documentation (https://github.com/single-spa/single-spa/pull/533 via @joeldenning)
• Add new single-spa:before-mount-routing-event fired to the window - Documentation (https://github.com/single-spa/single-spa/pull/534 via @joeldenning)
• New API pathToActiveWhen is exposed as a single-spa export - Documentation (https://github.com/single-spa/single-spa/pull/535 via @joeldenning)

Fixes

• Fix strict mode error where functions were declared inside of if statement. Fixes IE10 issues (https://github.com/single-spa/single-spa/pull/537 via @bloody-ux)

Fixes

• Fix bug in navigateToUrl with URL query comparison #519 (@DuLinRain)

Fixes

• lib/esm/single-spa.min.js now works in IE11. For those who don't need IE11 support, you can use the new lib/es2015/single-spa.min.js build. See related https://unpkg.com/browse/[email protected]/lib/ (#517 via @frehner)

Fixes

• The UMD and System.register builds of single-spa now run in strict mode (https://github.com/single-spa/single-spa/pull/507 via @frehner)
• Fix types for parcels (https://github.com/single-spa/single-spa/pull/510 via @kuitos)
• Add extra information to single-spa:app-change event (https://github.com/single-spa/single-spa/issues/508 via @joeldenning) (see below)

window.addEventListener('single-spa:app-change', evt => {
  console.log(evt.newAppStatuses) // { app1: MOUNTED, app2: NOT_MOUNTED }
  console.log(evt.appsByNewStatus) // { MOUNTED: ['app1'], NOT_MOUNTED: ['app2'] }
  console.log(evt.totalAppChanges) // 2
})