Move redirect and external redirect out of middleware

[fernandolucchesi]

Potential fix is fetching redirects during build time

[BorghildSelle]

Todo:

• [ ] Test really good on staging

• [x] move the getRedirect logic into own vanillajs file, similar to securityHEaders

• [x] Document js as if ts

• [ ] Change redirects documentation on wiki.

  • Almost done. Need to update link to redirect file when in main.

[BorghildSelle]

@padms @millianapia Can you test redirects in staging environment? Needs to be checked:

• [ ] external redirects
• [ ] internal english redirects (without /en and maybe with /en)
• [ ] internal norwegian redirects (with /no/ and the language is set in web for english)
• [ ] news redirects to archived
• [ ] .html endings
• [ ] camel case to lowercase

[meols]

@BorghildSelle - nothing for me to test here I assume? :smile:

[BorghildSelle]

@meols not yet, developers must test first :)

[meols]

@BorghildSelle - will this fix issues in the siteimprove reports linked below? We see a spike around 25 April in several of the reports, and don't understand why why we have a sudden increase. https://my2.siteimprove.com/SEOv2/550893/Recommendations/RedirectsChain https://my2.siteimprove.com/SEOv2/550893/Recommendations/Redirects301 https://my2.siteimprove.com/SEOv2/550893/Recommendations/RedirectsNot301 https://my2.siteimprove.com/SEOv2/550893/Recommendations/RedirectsMixed

[BorghildSelle]

@padms Put this back in to do, so we can do the suggestion we talked about with returning after all conditions have been checked