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locust/webui/dist/index.html script errors. #2753

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spatel-glsauto opened this issue Jun 7, 2024 · 7 comments · Fixed by #2759
Closed
2 tasks done

locust/webui/dist/index.html script errors. #2753

spatel-glsauto opened this issue Jun 7, 2024 · 7 comments · Fixed by #2759
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@spatel-glsauto
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spatel-glsauto commented Jun 7, 2024 •
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Prerequisites

Description

I'm on version 2.28.0. When I run locust.exe, I open up localhost:8089 in chrome. The page appears blank. Opening developer tools, I saw the following:

  1. Failed to load module script: Expected a JavaScript module script but the server responded with a MIME type of "text/plain". Strict MIME type checking is enforced for module scripts per HTML spec.
    a. Modifying the mime type from "module" to "application/javascript" fixed this error.

  2. Minified React error Inconsistent stats resetting #299; visit https://reactjs.org/docs/error-decoder.html?invariant=299
    a. Moving the first script tag out of <head> to right after the inline script fixed this error.

Command line

locust.exe

Locustfile contents

from locust import HttpUser, task
class HelloWorldUser(HttpUser):
    @task
    def hello_world(self):
        self.client.get("about:blank/")

Python version

3.10.11

Locust version

2.28.0

Operating system

Microsoft Windows 10 Enterprise
@spatel-glsauto spatel-glsauto changed the title locust/webui/dist/index.html script errrors. locust/webui/dist/index.html script errors. Jun 7, 2024
@cyberw
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cyberw commented Jun 7, 2024

Hi @spatel-glsauto ! Can you try opening it in private mode to ensure it is not related to your browser? Do you have any extensions installed? Is there anything in Locust's log?

@spatel-glsauto
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spatel-glsauto commented Jun 7, 2024 via email

@spatel-glsauto
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Attached the image files that didn't get copied from the email reply:
Code edit that makes the browser work:
code_edit

Browser executed in incognito mode:
browser

The requested locust logs:
locust.log

@cyberw
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cyberw commented Jun 7, 2024

@andrewbaldwin44 Can you have a look?

@andrewbaldwin44
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andrewbaldwin44 commented Jun 10, 2024 •
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Some digging on Stackoverflow revealed that it may be a Windows issue

We've pushed a fix, let us know if this fixes your issue!

@andrewbaldwin44 andrewbaldwin44 mentioned this issue Jun 10, 2024
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@andrewbaldwin44
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Duplicates #2633

@cyberw
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cyberw commented Jun 10, 2024

@spatel-glsauto can you re-test with latest and greatest to see if your issue is resolved? (pip install -U --pre locust)

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Add JavaScript to MIME types for Windows Operating Systems andrewbaldwin44/locust
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@cyberw @andrewbaldwin44 @spatel-glsauto