Blob File Support In IE11

[lefevre-fraser]

Scenario: I have an R server running, and it has access to files that are not in the webroot. I don't want to copy the files into the webroot in order to load them via URL, just to delete them a second later. In browsers other than IE11 I can use the File 'class' function to create a valid file object: new File([(new Int8Array(array_of_bytes)).buffer], "File.stl");

In IE11 however, the File 'class' function does not exist. I'm trying to use a Blob object in place of the File object since a File object is a variation of the Blob object. The issue I encounter when passing a Blob object is that it is missing the 'name' property that is used in parse_3d_file function from the "parser.min.js" file has the function split called on it for obtaining the file type via file extension, and then throws an error because the 'name' property does not exist.

I have tried adding the 'name' property to the Blob object, but as soon as it is passed through the postMessage function any non-standard Blob properties are lost. In order to handle the issue, I propose a simple solution: If the name property is undefined on the local_file object, then use the filename property that would usually define a URL to provide the file name.

Possible Solution: The following line could be modified in this manner: This: https://github.com/omrips/viewstl/blob/a8d0fb71e71f5ce4c237ca7cb6cdb54cadea4d7d/src/load_stl.js#L31 Would becomes this: filename=e.data.data.local_file.name?e.data.data.local_file.name:e.data.data.filename;

If you need any further information regarding this issue please let me know.

Thank you, Fraser

[omrips]

Thanks Fraser,

Good call, fix uploaded.

[lefevre-fraser]

Thank you for fixing that so quickly.