IE6 download dynamic excel blocked by firewall - excel

I've created a tool that allows the client to dynamicly create a excel document based on the selected products. For this functionality I used PHPExcell. I've tested it on almost every browser and it's working fine (even in IE6).
The problem starts with the clients network, its a big company so they can't choose what browser they're using and they're stucked with IE6. Everything works fine except the excel download. After the generation a popup shows what they want to do (save/open) but when they press one of them a error occurs (could not acces file or file path could not be found or something like that). At the same time they get a warning from mcafee that a they're trying to open a unsave file.
When they try it on a http server it only happens once, when they go back to the page after the error everything works fine, even the excel generation.
But the error keeps coming on the https server, so they can't use it.
How to avoid / work around this? Is it even possible?

My guess is that the workbook is being built in a temporary internet files folder and the system is refusing to let them copy an open temp file to some other location on their system (as it should). You should try to arrange for something that will ask for the download location before hand and dynamically build the file from there.

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So I'm on ubuntu and I'm using station, a sort of web app. It grabs some of its icons from a server. However, this server is no longer maintained. Therefore some icons do not display properly and some of the UI is not very usable. So I wanted to know if there could be a way to set locally that when the URLs of that icons are "searched", my computer searches instead a file stored locally on my computer (I was able to grab the URLs so that's dealt with). My next idea would be to try to edit the source code but I'm not should I would be able to achieve that.
Thanks

Chrome extension select folder for several downloads

I'm working on a chrome extension that scrapes pages and downloads images within the page. However, I've run into a sort of roadblock.
Since the extension is designed to download several files at once, I'd like for the user to be able to click the 'Download' button, select a folder, then download all the images to that folder.
So far, the only thing I've seen that might be of use is the saveAs option in chrome.downloads.download(). However, it would be very tedious for the user to have to select a location and confirm for every file. Is there a way I can have the user select a folder, then just download all the files to that specific folder?
Let me know if I need to include any specific code. Figured it wasn't very important, since I don't even have code pertaining to this question currently.
Unfortunately you cannot. Your options are
Ask the user each time
Save the files to the downloads folder set by the user or a sub folder
Although much more complicated you could use native messaging and have native code communicate with the extension. You could then wait for the extension to complete the download and then send a message to your native host with the full path. Then your native host can move the file to where you want.

Opening a link to download a pdf only works with hard reload and dev tools open

There are a several factors here (Heroku, Node, expressjs, react) as I'm working with a few technologies newer to me, so I'm not sure what the missing piece is.
I have a react/node app that is working for me in my local dev environment (using create-react-app).
My "/" route returns a list of documents, from which I create a list of links. When you click on one, it calls a route that returns a PDF.
This works great locally.
I've deployed it to Heroku and get the following behavior:
Click on link
Instead of opening the PDF, it opens a new tab with the correct URL, but the response is the list of documents instead of the selected PDF.
If I do a hard-reload, I get the same thing.
If I open dev tools in Chrome, I get the same thing.
If I open dev tools AND THEN do a hard-reload, I get the attachment to render!!
If I then do a reload again, it reverts back to showing me the list.
In Edge, I don't need to have dev tools open. Just a hard-reload will render the attachment, but clicking refresh after, brings the list back instead.
Things I've considered:
+ If it were a caching issue, I would expect subsequent reloads to render the PDF, despite whether the Control key were down or dev tools open. Both requests are returning 200, although the one that is not working as expected is returning 200 (from ServiceWorker). The Remote Addresses are also different.
+If it were a routing issue, I wouldn't expect the PDF to ever get rendered properly.
Things I've noticed in hunting this down:
+ The requests are differing
Any guidance is greatly appreciated!
Okay, I've figured it out. The rubber duck helped me :-)
If I don't use https, all is working fine. I'm not sure, however, why dev tools + hard reload allows me to make the request properly.

The entity's form doesn't get updated

I have a HTML file, which I've uploaded as a web resource and linked to via an activity's form designer in an IFRAME. So far, so good.
Then, when I edited the source file locally and uploaded it (browse-save-publish, of course), I got no difference in the appearance on the screen. Here's the weird part. When I open the uploaded file in the editor, I can see the changes to my source code. On the RTF tab I can also see the change in colors of the background.
However, reloading the "create new"-form doesn't bring those changes to the client! I've tried restarting the window, restarting IE, clearing the cache. Nothing helps.
When I entered the very same page from a different client, I got to see the updated version. But after that, the subsequent changes are not updated either. It's like if IE thinks "oh, matey, ya wanna cache that for life, I see". Well, I don't. I'd like to see my edition in action pretty much directly and without creating a new account with a new client. :)
After a while, the update seems to go through and I get to see a new version but not in all browsers.
What is causing it?! How do I kill it?
(Win8/IE10/CRM11OL)
I have seen CRM do some weird IIS Caching. I'd assume this is a server side issue, but your using crm online, they won't let you run an IIS reset now will they? :) Have you tried running it on a new client in private browsing mode, deploying your change, and opening a new private browser to test if it is a client caching issue or a server caching issue?

How to detect in advance if a browser will download a file instead of viewing it?

Sometimes when you view a file on a page on its own, the browser has some default way of viewing it, like to place it in an image or video tag, or invoke some plugin. Other times, it just downloads the file.
Sometimes this is because of headers set by the server, but lets ignore that for now. For some file types, it doesn't matter what headers were set -- the browser will try to download them regardless.
Some of the types that the browser will view are listed in navigator.mimeTypes. However, this is not authoritative. The iPad can view Microsoft Office files but it does not report this.
Is there any simple way to figure out what the browser is going to do with a file before it does it?

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