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Hong 66 posts 228 karma points

Jan 21, 2020 @ 14:16

The website appears to work fine, but its backoffice is a blank page. The debugging console shows the following:

   lazyload.js:260 GET http://mydomain/DependencyHandler.axd?s=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&t=Javascript&cdv=1222475404 net::ERR_ABORTED 404 (Not Found)
    load @ lazyload.js:260
    js @ lazyload.js:386
    (anonymous) @ Application?umb__rnd=fffffffe3374e4a3:1
    Application?umb__rnd=fffffffe3374e4a3:1 Uncaught ReferenceError: UmbClientMgr is not defined
        at Application?umb__rnd=fffffffe3374e4a3:1
        at finish (lazyload.js:108)
        at HTMLScriptElement._finish (lazyload.js:162)
    (anonymous) @ Application?umb__rnd=fffffffe3374e4a3:1
    finish @ lazyload.js:108
    _finish @ lazyload.js:162
    error (async)
    load @ lazyload.js:253
    js @ lazyload.js:386
    (anonymous) @ Application?umb__rnd=fffffffe3374e4a3:1
    content.min.js:2 [Deprecation] Element.createShadowRoot is deprecated and will be removed in M80, around February 2020. Please use Element.attachShadow instead. See https://www.chromestatus.com/features/4507242028072960 and https://developers.google.com/web/updates/2019/07/web-components-time-to-upgrade for more details.
    (anonymous) @ content.min.js:2

It used to work. Could you anyone offer a tip on how to remedy this?

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Kevin Jump 2342 posts 14889 karma points MVP 8x c-trib

Jan 21, 2020 @ 14:51
1
Hi

I get this when i've been working on diffrent umbraco installations i think there is a conflict in cookies/storage somewhere.

Quick fix i've found to clear application storage and reload site

in chrome:
- go to developer console - (right click inspect - or CTRL-Shift-I)
- go to the application tab,
- select clear storage from the side
- click the clear storage button in the window
- refresh the browser, and log back into umbraco
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Hong 66 posts 228 karma points

Jan 21, 2020 @ 15:31

0

Thank you for the tip. I followed your instructions, but the problem remains. I also tried incognito, two different other browsers (Edge, Firefox) with which this site had been browsed, but the outcome is the same.

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Kevin Jump 2342 posts 14889 karma points MVP 8x c-trib

Jan 21, 2020 @ 15:37
100
Hi,

it might be a script file of a plugin causing the issue,

Try running the site in debug mode (in the web.config change the debug="false" to debug="true" on the compliations line.

e.g
```
<compilation defaultLanguage="c#" debug="true" batch="true" targetFramework="4.7.2" numRecompilesBeforeAppRestart="50">
```
if there is an issue with a script - it can have knock-on effects on other script files when Umbraco merges them all together. turning on debugging will cause the scripts not to be merged, you might still get a console error, but it won't then affect other scripts and it will help you debug the issue.
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Hong 66 posts 228 karma points

Jan 21, 2020 @ 16:00

0

👍 It works. Thanks a lot. I will upgrade the Umbraco version to 8 first to see if it will work without the debug mode in the near future..

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