Large form field freezing Fiddler

[Nicholas]

Fiddler freezes and becomes virtually unusable when you try to inspect the form field with long value. In my case it's around 20,000 characters, which I don't think in this day and age is a particularly large piece of data to handle for modern applications running on modern computers??

[Eric R | Senior Technical Support Engineer]

Hi Nicholas,

Generally, this depends upon the encoding. The WebForms Inspector works best with URLEncoded data which is typically used by simple web forms. Support for multipart/form-data encoding is commonly used for file uploads and is easier to inspect using the HexView. 

Although, from the information provided it is difficult to understand the scenario entirely. If you would like me to investigate this further, can you provide the following information?

1. A Session Archive Zip file.

2. Output of the Fiddler Log Tab as seen in the below screenshot.

3. A screenshot or video of the form being inspected and Fiddler freezing.

4. Any other information that you think may be helpful.

Once I have the above information, I can provide a more thorough response.

In the meantime, please let me know if you need any additional information. Thank you for using the Fiddler Forums.

Regards,

Eric R | Senior Technical Support Engineer
Progress Telerik