Remove the fallback logic of backup_url (#1451)

* Refactor link handling: Replace backup_url and is_broken with status and wayback_url

* Update Playwright test for external resource to use wayback_url

* Remove fallback wayback URL logic

base-theme/layouts/partials/external_resource_link.html

@@ -1,7 +1,5 @@
 {{- $text := default .title .text -}}
 {{- $href := default "" .external_url -}}
-{{- $isBroken := default false .is_broken -}}
-{{- $backupUrl := default "" .backup_url -}}
 {{- $hasWarning := default true .has_external_license_warning -}}
 {{- $className := printf "%s %s" "external-link" (default "" .class) -}}
 {{- $onClick := "" -}}
@@ -10,9 +8,6 @@
   {{/* Prevents external links from being clicked before corresponding JS is fully loaded. */}}
   {{- $onClick = "event.preventDefault()" -}}
 {{- end -}}
-{{- if and $isBroken $backupUrl -}}
-  {{- $href = $backupUrl -}}
-{{- end -}}
 {{- if not (in $href "ocw.mit.edu") -}}
   {{- partial "link" (dict
       "href" $href

tests-e2e/ocw-ci-test-course/external-resources.spec.ts

@@ -59,21 +59,6 @@ test("External resource in page opens a new tab", async ({ page }) => {
   )
 })
 
-test("Broken external resource opens backup_url", async ({ page }) => {
-  const course = new CoursePage(page, "course")
-  await course.goto("/pages/external-resources-page")
-
-  const link = page.getByRole("link", { name: "broken external resource" })
-
-  const targetAttribute = await link.getAttribute("target")
-  expect(targetAttribute).toBeNull()
-
-  const classAttribute = await link.getAttribute("class")
-  expect(classAttribute).toBeNull()
-
-  await link.click()
-})
-
 test("External resource opens confirmation modal", async ({ page }) => {
   const course = new CoursePage(page, "course")
   await course.goto("/pages/external-resources-page")