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Angular PWA service worker not refreshing offline when deployed to IIS
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(275.2, 56.00000000000001%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EU%3C/text%3E%3C/svg%3E)
umarakmal56j
1
Reputation point
Basically I have the same issue as this unanswered question describes.
When I am serving our PWA with http-server, everything seems to run fine, but when I deploy it to our live environment which is a Windows Server with IIS it only runs fine online. When I go offline, I cannot refresh the page. The service worker returns status 504 and I can't figure out why.
I'm running out of ideas how to troubleshoot.
Are there any useful guides how to correctly setup Angular apps on IIS? (specifically PWAs with offline capability)
Does anybody have ideas what I could check e.g. in my HTTP headers?
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(3.2, 24%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESW%3C/text%3E%3C/svg%3E)
Sam Wu-MSFT 7,561 Reputation points Microsoft External Staff2021-06-11T01:12:20.353+00:00 @umarakmal56j You can use failed request tracking to view detailed error information.
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