langflow
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langflow-ai
Blank UI page after started
Describe the bug After started the server, when I load into the localhost:7860, it gives a completely blank page.
Here is the console log:
langflow
[09:31:00] INFO [09:31:00] - INFO - Logger set up with log level: 20(info) logger.py:28 INFO [09:31:00] - INFO - Log file: logs\langflow.log logger.py:30 INFO: Started server process [15244] INFO: Waiting for application startup. INFO: Application startup complete. INFO: Uvicorn running on http://127.0.0.1:7860 (Press CTRL+C to quit) INFO: 127.0.0.1:28610 - "GET / HTTP/1.1" 200 OK INFO: 127.0.0.1:28610 - "GET /assets/index-e39661aa.js HTTP/1.1" 200 OK INFO: 127.0.0.1:28611 - "GET /assets/index-d5403acc.css HTTP/1.1" 200 OK INFO: 127.0.0.1:28612 - "GET / HTTP/1.1" 304 Not Modified INFO: 127.0.0.1:28612 - "GET /favicon.ico HTTP/1.1" 200 OK INFO: 127.0.0.1:28612 - "GET / HTTP/1.1" 304 Not Modified INFO: 127.0.0.1:30691 - "GET / HTTP/1.1" 304 Not Modified INFO: 127.0.0.1:30691 - "GET /assets/index-e39661aa.js HTTP/1.1" 304 Not Modified INFO: 127.0.0.1:30691 - "GET /assets/index-d5403acc.css HTTP/1.1" 304 Not Modified
Browser and Version
- chrome
- Version 113.0.5672.127 (Official Build) (64-bit)
To Reproduce Not sure if it can be reproduced in other desktop, but here are the steps:
- Install langflow through pip install langflow
- Run langflow in the powershell
- Open URL at: localhost:7860
- See error
Screenshots
here is the screen I got:
Additional questions Is there anything I missed or I can check to see where I can start debug with?
Hi @shengxio! I tried to reproduce it as you said on my Windows machine. I did like this:
- On Powershell I run
pip install langflowin my langflow repo folder. - Run
langflowin the Powershell - Open URL at: http://127.0.0.1:7860/
- It worked.
Try to access it with the following link given on your log: http://127.0.0.1:7860/
Hey Carlos:
Thanks for attending my issue. I have tried with the url that you have provided, It still doesn't work. Is it possible for you to share your console response as well? I got this one, where the /HTTP/1.1 and /favicon.ico HTTP/1.1 were returned with 304 errors.
[image: image.png]
Would be great if I can get a comparable result to see how the normal log shall look like.
Thanks!
On Thu, May 25, 2023 at 12:13 PM Carlos Coelho @.***> wrote:
Hi @shengxio https://github.com/shengxio! I tried to reproduce it as you said on my Windows machine. I did like this:
1.On powershell I run pip install langflow in my langflow repo folder. 2. Run langflow in the Powershell 3. Open URL at: http://127.0.0.1:7860/ 4. It worked.
[image: image] https://user-images.githubusercontent.com/80289056/240999081-b2894442-1ca0-4ba0-aae9-6bcb16333908.png
Try to access it with the following link given on your log: http://127.0.0.1:7860/
— Reply to this email directly, view it on GitHub https://github.com/logspace-ai/langflow/issues/353#issuecomment-1563314306, or unsubscribe https://github.com/notifications/unsubscribe-auth/AHXRGEFN2CZ33JW3P5JIMYTXH6OMVANCNFSM6AAAAAAYPDCL5E . You are receiving this because you were mentioned.Message ID: @.***>
-- Roland Ding Founder of Lanterns
Phone: 780-952-1077 Meet with me: https://calendly.com/shengxio-d/30min
I have the version 0.0.78. I believe that would be the latest version?
Name: langflow Version: 0.0.78 Summary: A Python package with a built-in web application Home-page: https://github.com/logspace-ai/langflow Author: Logspace Author-email: @.*** License: MIT
By the way here is my system info:
OS Name: Microsoft Windows 11 Pro OS Version: 10.0.22621 N/A Build 22621 OS Manufacturer: Microsoft Corporation OS Configuration: Standalone Workstation OS Build Type: Multiprocessor Free System Boot Time: 2023-05-24, 10:01:26 PM System Manufacturer: ASUSTeK COMPUTER INC. System Model: ZenBook Pro Duo UX581GV_UX581GV System Type: x64-based PC Processor(s): 1 Processor(s) Installed. [01]: Intel64 Family 6 Model 158 Stepping 10 GenuineIntel ~2592 Mhz BIOS Version: American Megatrends Inc. UX581GV.308, 2020-05-18
Not sure if it will help, but might as well?
On Thu, May 25, 2023 at 12:42 PM Carlos Coelho @.***> wrote:
[image: image] https://user-images.githubusercontent.com/80289056/241004259-a2001fa4-efc5-46f4-a3a3-0889e1f3f12c.png
[image: image] https://user-images.githubusercontent.com/80289056/241004525-eeddafa3-6ed6-45f2-8a8c-48342e59040a.png
Check if you have the latest version of LangFlow.
— Reply to this email directly, view it on GitHub https://github.com/logspace-ai/langflow/issues/353#issuecomment-1563339425, or unsubscribe https://github.com/notifications/unsubscribe-auth/AHXRGECHHRFFGUPUZQ52ZL3XH6RYJANCNFSM6AAAAAAYPDCL5E . You are receiving this because you were mentioned.Message ID: @.***>
-- Roland Ding Founder of Lanterns
Phone: 780-952-1077 Meet with me: https://calendly.com/shengxio-d/30min
same issue
Loading failed for the module with source “http://127.0.0.1:7860/assets/index-e39661aa.js”.
Loading module from “http://127.0.0.1:7860/assets/index-e39661aa.js” was blocked because of a disallowed MIME type (“text/plain”).
I have a similar issue. I used http://localhost:7860 In tools saw this output first line related to http://127.0.0.1:7860/assets/index-e39661aa.js as above 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.
I have the exact same issue as described above. Having issues with the same files. I also have a similar build to @shengxio
Can you guys please test with another browser and see if the issue persists?
Just tried on edge, no go. Same on mozilla (fresh install cause its not one I normally use) with error in dev tools Loading failed for the module with source “http://127.0.0.1:7860/assets/index-e39661aa.js”. This is the link Mozilla sends me to for more information on the error https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/X-Content-Type-Options?utm_source=mozilla&utm_medium=firefox-console-errors&utm_campaign=default
Hey, just a quick question. To help improve with this problem, is there anyway that we can get the debug log? I am really curious what caused the 304 not modified error for the get operation.
Thanks
On Tue, May 30, 2023 at 7:12 PM BestDarkHorse @.***> wrote:
same issue
— Reply to this email directly, view it on GitHub https://github.com/logspace-ai/langflow/issues/353#issuecomment-1569348077, or unsubscribe https://github.com/notifications/unsubscribe-auth/AHXRGEFMBWA64EQQ7JZZL6TXI2LGLANCNFSM6AAAAAAYPDCL5E . You are receiving this because you were mentioned.Message ID: @.***>
-- Roland Ding Founder of Lanterns
Phone: 780-952-1077 Meet with me: https://calendly.com/shengxio-d/30min
I have the same issuse. I tired using anaconda to create python 3.9 env to run it, gets a blank page. I also used pip venv to create 3.11 environment, it is also a blank page. I am no windows 11.
| Python version | Langflow version | result |
|---|---|---|
| 3.9.16 | 0.0.81 | Blank UI |
| 3.10.11 | 0.0.81 | Blank UI |
| 3.11.0 | 0.0.81 | Blank UI |
| 3.11.0 | 0.0.79 | Blank UI |
| 3.11.0 | 0.0.76 | Blank UI |
All of them shows a blank screen.
After searching:
pected 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.
I got this:
https://stackoverflow.com/questions/67286882/failed-to-load-module-script-the-server-responded-with-a-non-javascript-mime-ty
https://blog.csdn.net/SunFlower914/article/details/126461682
Anyone has any clue?
Just updated to the latest version using Miniconda3 venv, cleared cache and cookies, still the same problem, in Firefox Developer Edition 64-Bit V 114.0b9, Firefox Regular 64-Bit v113.0.2 & Edge v114.0.1823.37 64-Bit (Official Build). Also getting the same MIME error as others.
We just merged #455 . This might fix this issue, so update to version 0.0.85 or higher to get the fix.
Just updated to version 0.085 using Miniconda; still the same error across Firefox, Firefox Dev and Edge. Blank UI, and
Loading module from “http://127.0.0.1:7860/assets/index-639f6f6b.js” was blocked because of a disallowed MIME type (“text/plain”). 127.0.0.1:7860 Loading failed for the module with source “http://127.0.0.1:7860/assets/index-639f6f6b.js”. 127.0.0.1:7860:9:68
Just updated version 0.085 along with all the updated dependencies. I no longer have the issue of the 304 error in the log.
However, my langflow UI is still empty across all browsers.
On Wed, Jun 7, 2023 at 3:27 PM Acidbuk @.***> wrote:
Just updated to version 0.085 using Miniconda; still the same error across Firefox, Firefox Dev and Edge. Blank UI, and
Loading module from “http://127.0.0.1:7860/assets/index-639f6f6b.js” was blocked because of a disallowed MIME type (“text/plain”). 127.0.0.1:7860 Loading failed for the module with source “ http://127.0.0.1:7860/assets/index-639f6f6b.js”. 127.0.0.1:7860:9:68 http://127.0.0.1:7860/
— Reply to this email directly, view it on GitHub https://github.com/logspace-ai/langflow/issues/353#issuecomment-1581535498, or unsubscribe https://github.com/notifications/unsubscribe-auth/AHXRGEAXCBD5HRSSPZ66PETXKDW5BANCNFSM6AAAAAAYPDCL5E . You are receiving this because you were mentioned.Message ID: @.***>
-- Roland Ding Founder of Lanterns
Phone: 780-952-1077 Meet with me: https://calendly.com/shengxio-d/30min
Just updated to 0.087 version and the UI is empty. I am using Ubuntu. When I gave right click on the loaded page and checked the page source- it says . But I checked that js in enable in my chrome. I also tried from firefox and failed. Did anyone built and run the dockerized version[with proper interface loaded]. Please help!!!
Did a clean build of langchain and langflow from source using python 3.10.11
I found this error that I fixed by creating the missing directory
Then running I get this
This is what I found in firefox
I've been looking around and could it at all be related to this? https://stackoverflow.com/questions/1321878/how-to-prevent-favicon-ico-requests#
I solve this by change my register -> HKEY_CLASSES_ROOT.js -> Content_Type=application/javascript