Block page redirects and ask user how to proceed

[weatherpattern]

When Scanner finds a page with the redirect, raise up a pop-up window (in frame) with the text below.
Close link goes the pop-up and stay on the original screen.
Proceed link goes to the redirect page.

"This page has a redirect to this url:
url.com
Close Proceed"

[Mr0grog]

Can you include an example case here? I‘ve lost track of the original concrete case that triggered it.

[weatherpattern]

Sure.
Example:
https://www.epa.gov/region9/islands/guam.html
For reference:
https://monitoring.envirodatagov.org/page/7c675c7b-ac77-4ae2-9b86-3553c16b3c53/059e166e-f712-4803-b7c9-a192faf3ee13..f881540f-372d-4d05-b847-7f96fb85d67f

[Mr0grog]

Ah, right, thank you!

So some redirects, like this one, which uses a <meta http-equiv="refresh" content="0; url=https://www.epa.gov/pi" /> element, are easy to handle by removing them (or replacing them with a custom script) when we change the page’s base in SandboxedHtml.

On the other hand, we probably can’t handle script-based redirects right now:

• We could pre-load, manipulate, and inject scripts in the same place above, where are manipulating the HTML source (super complicated)
• We could use a service worker (requires us to have a completely different way of loading the page, which we need anyway; see Solve rendering problem when iframe loads content from https or touches storage/cookies web-monitoring#92)
• We could have a proxy service that manipulates the script (like the service worker, this would require us to have a totally different way of loading the page, which we need to do regardless)

[weatherpattern]

We could break it into two part. One for the easy redirects, and another for script-based ones.

Wondering out loud if either of them is v0.0.2.

[stale]

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[Mr0grog]

Ugh, this is pretty important and we still haven’t done it.