# Simbrief Login Crashes when using %TOW% in HTML Link

**URL:** <https://forum.navigraph.com/t/simbrief-login-crashes-when-using-tow-in-html-link/23794>\
**Category:** API\
**Created:** [July 5, 2026, 12:32pm UTC](https://forum.navigraph.com/t/simbrief-login-crashes-when-using-tow-in-html-link/23794 "2026-07-05T12:32:21Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Benl112](https://avatars.discourse-cdn.com/v4/letter/b/7ba0ec/32.png) [@Benl112](https://forum.navigraph.com/u/Benl112)\
**Post date:** [July 5, 2026, 12:32pm UTC](https://forum.navigraph.com/t/simbrief-login-crashes-when-using-tow-in-html-link/23794/1 "2026-07-05T12:32:21Z")

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Dear Team,

today we wanted to implement the Eurocontrol recommendation for displaying TAXI-Time and TOW in the Extra FPL Info. Therefor we added the following to the html link to transfer the data to simbrief:  
`'","extrarmk":"' . $pInfo['extrarmk'] . " RMK/ TAXI:%TAXI% TOW:%TOW%" .`

With this implemented and opening the resulting html link, simbrief opens but says “sign in” but wont sign in. If we delete it again, then simbrief opens normally and displays the planning mask. Could the “%” be the problem?

Thanks in advance for your efforts!

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**Author:** ![GordonNG](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/gordonng/32/27797_2.png) [@GordonNG](https://forum.navigraph.com/u/GordonNG)\
**Post date:** [July 5, 2026, 1:55pm UTC](https://forum.navigraph.com/t/simbrief-login-crashes-when-using-tow-in-html-link/23794/2 "2026-07-05T13:55:55Z")

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I have escalated this to the SimBrief team. We will look into it.

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**Author:** ![SimBrief](https://dub1.discourse-cdn.com/flex013/user_avatar/forum.navigraph.com/simbrief/32/4850_2.png) [@SimBrief](https://forum.navigraph.com/u/SimBrief)\
**Post date:** [July 5, 2026, 2:29pm UTC](https://forum.navigraph.com/t/simbrief-login-crashes-when-using-tow-in-html-link/23794/3 "2026-07-05T14:29:51Z")

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Hi, your URL is invalid. You will need to URL encode the percent signs in `%TAXI%` and `%TOW%`.

Try changing your code to:

```plaintext
'","extrarmk":"' . $pInfo['extrarmk'] . " RMK/ TAXI:%25TAXI%25 TOW:%25TOW%25" .

```

(`%TAXI%` becomes `%25TAXI%25`, and `%TOW%` becomes `%25TOW%25`).

Best regards,

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**Author:** ![system](https://europe1.discourse-cdn.com/flex013/uploads/navigraph1/original/1X/4cc83e90d70ab312b1bd2d7527bddad309607265.png) [@system](https://forum.navigraph.com/u/system)\
**Post date:** [July 12, 2026, 2:30pm UTC](https://forum.navigraph.com/t/simbrief-login-crashes-when-using-tow-in-html-link/23794/4 "2026-07-12T14:30:49Z")

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