Ender Pearls do not Collide with semi-transparent objects.

Ender pearls no longer collide as they used to on 1.15

https://minecraft.gamepedia.com/Ender_Pearl As shown here, previously ender pearls used to collide with:

Ender pearls collide with tripwire, cobwebs, vines, grass, dead bushes, ferns, flowers, all sapling types, all mushrooms types, all minecart types, boats, end crystals and nether portals, and travel through end portals.