404 on lazyloadjs during upgrade process - Using Umbraco And Getting Started

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Paul de Quant 403 posts 1520 karma points

Nov 07, 2017 @ 09:50

0

404 on lazyload.js during upgrade process

Using Umbraco And Getting Started

Umbraco 7

Hello,

I'm in the process of upgrading an umbraco site from 7.5.10 to 7.7.4. My issue is that the upgrade page isn't loading correctly because it can't find the script - lib/rgrove-lazyload/lazyload.js

I've checked the path in question and that file does exist. Even if I go directly to it, it returns a 404 error. I've tried other scripts as well and it's the same issue.

Has anyone experienced this before and can they provide any help.

Many thanks

Paul

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Paul de Quant 403 posts 1520 karma points

Nov 07, 2017 @ 10:15

0

UPDATE:

After trying Firefox instead of Chrome I can see I'm getting the error:-

/umbraco/lib/rgrove-lazyload/lazyload.js” was blocked due to MIME type mismatch (X-Content-Type-Options: nosniff).

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Sebastiaan Janssen 5045 posts 15476 karma points MVP admin hq

Nov 07, 2017 @ 16:32

Looks like you need to negate the nosniff header for the /umbraco route, find the location node in your web.config and update it accordingly:

  <location path="umbraco">
    <system.webServer>
      <urlCompression doStaticCompression="false" doDynamicCompression="false" dynamicCompressionBeforeCache="false" />
      <httpProtocol>
        <customHeaders>
          <remove name="X-Frame-Options" />
          <add name="X-Frame-Options" value="SAMEORIGIN" />
          <remove name="X-Content-Type-Options" />
        </customHeaders>
      </httpProtocol>
    </system.webServer>
  </location>

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Paul de Quant 403 posts 1520 karma points

Nov 07, 2017 @ 16:41

100

Hi Sebastiaan,

Thanks for the suggestion, I managed to get it working. Looks like NUGET wasn't playing ball. I ended up downloading the Umbraco and Umbraco_Client folders from the our site and copied them directly over.

Problem went away :)

Thanks

Paul

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404 on lazyload.js during upgrade process